1 SOPO 2016 Conference Guide
Table of Contents Part I SOPO 2016 Conference Schedule ............................................................. 2
Part II Plenary Speeches .................................................................................... 3
Plenary Speech 1: Integrated Silicon Photonic Devices for Optical Interconnections in IT Equipment ................ 3
Plenary Speech 2: Design and Optimization of Silicon Photonic Devices ............................................................. 3
Part III Invited Speeches ................................................................................... 4
Invited Speech 1: High Density Data Storage System using Collinear Holography .............................................. 4
Invited Speech 2: Single Nanoparticle Detection Using High-Q Optical Microcavities ........................................ 5
Invited Speech 3: Study on Temperature Features of a Diode-Pumped Alkali Laser (DPAL) .............................. 5
Invited Speech 4: Ways of Precision Photon Status Sensing for Future Super Resolution Medical Imaging........ 6
Invited Speech 5: Study on fiber property of the Chinese meridian and Apply the fiber coupler theory of
photoreceptors to explain color version .................................................................................................................. 7
Invited Speech 6: Silicon-based microphotonic structures and devices ................................................................. 7
Invited Speech 7: An Optical Fibre Sensor for Ammonia Gas Detection in the Ultra Violet Region .................... 8
Invited Speech 8: Fiber gratings and their applications in all-optical signal processing ........................................ 8
Invited Speech 9: Recent Advances in Chip-Scale Optical Signaling and Processing on a Silicon Platform ........ 9
Invited Speech 10: Failure Criterion of Organic Photovoltaic Cells in Aqueous Solutions ................................... 9
Invited Speech 11: Millimeter-Wave/Terahertz Antennas and Integrated Circuits for Imaging and 10Gbps
Communications ................................................................................................................................................... 10
Invited Speech 12: Acoustic Phase Cancellation on Broadband Ultrasonic ......................................................... 10
Invited Speech 13: Optical and electronic properties of monomers of eumelanin: a DFT and TD-DFT
computational study.............................................................................................................................................. 11
Invited Speech 14: Dissipative soliton pulses in fiber lasers ................................................................................ 11
Part IV Technical Sessions ............................................................................... 12
Special Session: Ultrafast Laser Technology ................................................................................................... 12
Technical Session 1: Optical Communications & Optoelectronic Devices and Integration ........................ 13
Technical Session 2: Laser Technology and Applications & Medical and Biological Applications ............ 14
Part V Abstracts ............................................................................................... 16
Special Session: Ultrafast Laser Technology ................................................................................................... 16
Technical Session 1: Optical Communications & Optoelectronic Devices and Integration ........................ 19
Technical Session 2: Laser Technology and Applications & Medical and Biological Applications ............ 27
Part VI Instructions for Presentations ............................................................. 34
Part VII Hotel Information .............................................................................. 35
Contact Us .......................................................................................................... 37
2 SOPO 2016 Conference Guide
Part I SOPO 2016 Conference Schedule
Time: August 26-August 28, 2016
Location: Ramada Xi'an Bell Tower, Xi’an, China
Date Time Lobby, Ramada Xi'an Bell Tower
August 26 14:00-17:00 Registration
Date Time Tongji Room(通济厅) 3rd Floor
August 27
08:30-08:40 Opening Ceremony Chair: Prof. Zhiping Zhou
08:40-10:00 Plenary Speeches
Chair: Prof. Zhiping Zhou
10:00-10:15 Group Photo & Coffee Break
10:15-12:45 Invited Session 1
Chair: Prof. Zhiping Zhou
12:00-13:45 Lunch [TBD]
14:00-18:45 Invited Session 2
Chair: Prof. Elfed Lewis
16:00-16:15 Group Photo & Coffee Break
18:00-19:30 Dinner [Lives Café(麗屋咖啡厅), 2nd Floor]
Date Time Jude Room(居德厅) 3rd Floor Zhaoxing Room(昭行厅) 3rd Floor
August 28
08:30-12:00
Special Session: Ultrafast Laser
Technology
Chair: Dr. Jiangfeng Zhu
Coffee Break:10:00-10:15
Technical Session 1:
Chair: Dr. Shuping Wang
Coffee Break:10:00-10:15
12:00-13:30 Lunch [Lives Cafe(麗屋咖啡厅), 2nd Floor]
Time Zhaoxing Room(昭行厅) 3rd Floor
14:00-18:00
Technical Session 2:
Chair: TBD
Coffee Break:16:00-16:15
August 29 07:00-18:00 One-day Tour (at own expense)
3 SOPO 2016 Conference Guide
Part II Plenary Speeches
Plenary Speech 1: Integrated Silicon Photonic Devices for Optical
Interconnections in IT Equipment
Speaker: Prof. Tao Chu, Institute of Semiconductors, Chinese Academy of Sicences, China.
Time: 08:40-09:20, Saturday Morning, August 27, 2016
Location: Tongji Room(通济厅),3rd Floor, Ramada Xi’an Bell Tower Abstract Following the rapid developments of modern information society, data-exchanging of ULSI chip (CPU core-to-core), chip-to-chip (CPU-to-CPU/memory), board-to-board, and rack-to-rack are demanded to be faster and faster by the future Exascale high performance computers, data centers and other IT equipment. However, due to the limits on data rate, time delay, and power consumption of the electrical wiring and communicating, data exchanging encounters the largest problem in speed increasing with the conventional electrical interconnection systems. Optical interconnection based on silicon photonic devices becomes the most promising solution of these issues, due to that silicon photonic devices based on sub-micron silicon waveguides are compact, energy saving, lower cost and CMOS compatible. Scientists have devoted on this research and many novel silicon photonic devices have been developed. In conference, we will introduce the latest progress on a series of silicon photonic devices, including hybrid integrated silicon lasers, high speed silicon modulators module, polarization controlling devices, wavelength MUX/DEMUX devices of AWG and EDG, high speed 32x32 electro-optic and large-scale 64x64 thermo-optic switch matrix, grating couplers and other devices. We will also discuss the applications of integrated silicon photonic interconnecting systems for HPCs, datacenters and other IT systems.
Plenary Speech 2: Design and Optimization of Silicon Photonic Devices
Speaker: Prof. Aziz Rahman, City University London, UK Time: 09:20-10:00, Saturday Morning, August 27, 2016 Location: Tongji Room(通济厅),3rd Floor, Ramada Xi’an Bell Tower Abstract When the dimensions of an optical waveguide are much smaller than the operating wavelength, unique materials and structural dependent properties can be observed and these recently have been receiving much attention. In this regard, silicon has been particularly attractive as the low-cost and mature
4 SOPO 2016 Conference Guide
CMOS fabrication technology widely used in the electronics industry can be exploited. The high index contrast of silicon allows light confinement in submicron size waveguides, along with the creation of very compact bends, to allow increased functionality of photonic integrated circuits. However, strong spatial field variation and high field at the dielectric interface demands a full-vectorial approach must be used. A rigorous H-field based full-vectorial modal analysis has been carried out, which can more accurately characterize the abrupt dielectric discontinuity of a high index contrast optical waveguide. As a result, the full-vectorial H and E-fields and the Poynting vector profiles are shown in detail. The modal solutions of silicon nanowires and vertical and horizontal slot waveguides will be presented. Rigorous design optimization of silicon nanowires and slot waveguides and various guided-wave devices, such as power splitters, mode splitters, polarization splitters, polarization rotators, biosensors, SBS and spot-size converters will also be presented.
Part III Invited Speeches
Invited Speech 1: High Density Data Storage System using Collinear Holography
Speaker: Prof. Xiaodi Tan, Beijing Institute of Technology, China
Time: 10:15-10:45, Saturday Morning, August 27, 2016
Location: Tongji Room(通济厅),3rd Floor, Ramada Xi’an Bell Tower Abstract Holographic data storage systems (HDSS) have been a good candidate for a volumetric recording technology, due to their large storage capacities and high transfer rates, and have been researched for tens of years after the principle of holography was first proposed. However, these systems, called conventional 2-axis holography, still have essential issues for commercialization of products. Collinear HDSS, in which the information and reference beams are modulated co-axially by the same spatial light modulator (SLM), as a new read/write method for HDSS are very promising. With this unique configuration, the optical pickup can be designed as small as DVDs, and can be placed on one side of the recording media (disc). In the disc structure, the preformatted reflective layer is used for the focus/tracking servo and reading address information, and a dichroic mirror layer is used for detecting holographic recording information without interfering with the preformatted information. A 2-dimensional digital page data format is used and the shift-multiplexing method is employed to increase recording density. As servo technologies are being introduced to control the objective lens to be maintained precisely to the disc in the recording and reconstructing process, a vibration isolator is no longer necessary. Collinear holography can produce a small, practical HDSS more easily than conventional 2-axis holography. In this paper, we introduced the principle of the collinear holography and its media structure of disc. Some results of experimental and theoretical studies suggest that it is a very effective method. Keywords holographic data storage system (HDSS), holography, optical memory, volumetric
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recording, optical disc, high density recording.
Invited Speech 2: Single Nanoparticle Detection Using High-Q Optical
Microcavities
Speaker: Prof. Yunfeng Xiao, Peking University, China
Time: 10:45-11:15, Saturday Morning, August 27, 2016
Location: Tongji Room(通济厅),3rd Floor, Ramada Xi’an Bell Tower Abstract Confinement and manipulation of photons using microcavities have triggered intense research interest in both fundamental and applied photonics for more than one decade. Prominent examples are ultrahigh-Q whispering gallery microcavities which confine photons by means of continuous total internal reflection along a curved and smooth surface. The long photon lifetime, strong field confinement, and in-plane emission characteristics make them promising candidates for enhancing light-matter interactions on a chip. In this talk, I will focus on the single-nanoparticle detection by using whispering gallery microcavities, which is highly desirable for applications in various fields, such as in early-stage diagnosis of human diseases and in environmental monitoring.
Invited Speech 3: Study on Temperature Features of a
Diode-Pumped Alkali Laser (DPAL)
Speaker: Prof. You Wang, Southwest Institute of Technical Physics, China
Time: 11:15-11:45, Saturday Morning, August 27, 2016
Location: Tongji Room(通济厅),3rd Floor, Ramada Xi’an Bell Tower Abstract With high Stokes efficiency, good thermal performance, narrow linewidth, compact size, non- toxic system, etc., a diode-pumped alkali laser (DPAL) becomes one of the most hopeful high-powered laser sources of the next generation and has been rapidly developed in the last ten years. However, the thermal effects will bring about some serious problems in nonuniformity of the temperature distribution for a high-powered DPAL system because the thermal conductivity of a gas-state medium is so small that the generated heat cannot be transferred outside efficiently. Unlike a conventional electrically-excited gas-state laser, the number densities of alkali vapors and buffer gases (generally being helium and small hydrocarbons such as methane and ethane) in a DPAL often exhibit inhomogeneous distributions resulting from the temperature gradient inside a vapor cell.
6 SOPO 2016 Conference Guide
Actually, the inhomogeneous of the alkali vapor directly influences the output performances of a DPAL. Studying the temperature distribution in the cross-section of an alkali-vapor cell is critical to realize high-powered DPAL systems for both static and flowing states. In this report, a theoretical algorithm has been built to investigate the features of a flowing-gas DPAL system by uniting procedures in kinetics, heat transfer, and fluid dynamic together. The thermal features and output characteristics have been simultaneously obtained for different gas velocities. The results have demonstrated the great potential of DPALs in the extremely high-powered laser operation.
Invited Speech 4: Ways of Precision Photon Status Sensing for Future Super
Resolution Medical Imaging
Speaker: Prof. Xuefeng Liu, Nanjing University of Science & Technology, China
Time: 11:45-12:15, Saturday Morning, August 27, 2016
Location: Tongji Room(通济厅),3rd Floor, Ramada Xi’an Bell Tower Abstract The simple mimic of human eye, grey scale and color tone mapping formed through photon number counting and energy measurement are direct optical imaging that suffer from losing of vital information due to nearfield evanescence and transmission diffraction. Direct imaging has a theoretical resolution limit of 1/4 wavelength, which has been seeking to break in a few world leading research centers and of cause also including RINRO (Research Institute of Nano-Resolution Optics) since the beginning the new millennium. This paper present a newly developed theory and method named photon status PIMI (Parametric Indirect Microscopic Imaging) for optical super resolution with the particular application in biomedical in vivo measurement. Photon status PIMI defies the usual working principle for super resolution, it does not just concerning the refinement of the measuring point size, photon numbers and photon energies, and instead, it makes the great effort on how to collect the high frequency evanescent wave and precisely calculate the parameters of average photon status after coupling with the Sample under Test (SUT). As an inevitable consequence, photon status PIMI can calculate photon wave parameters such as spatial phases, spatial azimuths, Stocks, degree of polarization across all photons collected from one point to the accuracy much higher than photon number counting. These photon status parameters can be used to differentiate two closely ranged neighboring points in the SUT so that spatial resolution can be considerably improved. Differing from measuring point size refining theory and methods, such as confocal microscopy gaining the scaling law of N^(-1/4) (N is the total photon number), also STED, STORM and PALM and so on fluorescent point control methods collecting the resolution scaling down to N^(-1/2), photon status PIMI, with the added photon status feature useful for the effective differentiation in the nanometer space, can gather the break through N^(-2) super resolution scaling. We will show the edge of a cell can be resolved to the resolution of 10nm in comparison with that of 300nm measured in conventional microscopy.
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Invited Speech 5: Study on fiber property of the Chinese meridian and Apply the
fiber coupler theory of photoreceptors to explain color version
Speaker: Prof. Anhui Liang, Guangdong University of Technologies, China
Time: 12:15-12:45, Saturday Morning, August 27, 2016
Location: Tongji Room(通济厅),3rd Floor, Ramada Xi’an Bell Tower Abstract TBD
Invited Speech 6: Silicon-based microphotonic structures and devices
Speaker: Prof. Wei Jiang, Nanjing University, China
Time: 14:00-14:30, Saturday Afternoon, August 27, 2016
Location: Tongji Room(通济厅),3rd Floor, Ramada Xi’an Bell Tower Abstract Silicon photonics has made great strides in the last decade as it can take advantage of the low-cost manufacturing platform offered by the CMOS technology. In future development, compact devices and high density integration will be key to demonstrating the value of silicon photonics. Silicon-based microphotonic structures can be introduced to enable compact devices and high-density integration. Several examples will be presented. Silicon-based dual-racetrack micro-resonators have potential applications in advanced modulation formats such as quadrature phase shift keying (QPSK) or quadrature amplitude modulation (QAM). The coherent amplitude and phase characteristics of dual-racetrack micro-resonators have recently been studied. Large phase variation range has been observed, which indicates the feasibility of such structures for advanced modulation formats. High-density waveguide integration is becoming increasingly important in recent years partly due to needs in space-division multiplexing and optical phased arrays. The fundamental challenge in achieving high integration density is the high crosstalk as the waveguide spacing is reduced to the wavelength scale. Recently, waveguide superlattices have been introduced to construct high-density waveguide arrays at half-wavelength pitch with very low crosstalk. The underpinning physics and design rationale of low-crosstalk waveguide superlattices will be presented. Potential applications of our work in optical interconnects, space-division multiplexing, mode-division multiplexing, wavelength-division multiplexing, and optical phased arrays will be discussed.
8 SOPO 2016 Conference Guide
Invited Speech 7: An Optical Fibre Sensor for Ammonia Gas Detection in the
Ultra Violet Region
Speaker: Prof. Elfed Lewis, University of Limerick and IEEE Sensors Council, USA
Time: 14:30-15:00, Saturday Afternoon, August 27, 2016
Location: Tongji Room(通济厅),3rd Floor, Ramada Xi’an Bell Tower Abstract A novel optical fibre sensor (OFS) is described for the monitoring of low level atmospheric ammonia concentrations. The measuring technique employed is based on a differential optical absorption approach, which uses a broadband optical source to include Ultra Violet (UV) wavelengths, optical fibres suitable for ultraviolet/visible (UV/VIS) transmission and a miniature spectrometer for UV/VIS detection. This novel technique for the detection of ammonia is shown to be capable of monitoring concentrations as low as 1 part per million (ppm) without any noticeable cross-sensitivity. The sensor was operated over a number of hours in-situ in an agricultural cattle enclosure and simultaneously with a commercially available ammonia sensor. Results shown herein demonstrate the effectiveness of the developed sensor to operate within the environment safely and accurately, recording concentration levels in the range 0 to 2 ppm.
Invited Speech 8: Fiber gratings and their applications in all-optical signal
processing
Speaker: Prof. Xuewen Shu, Wuhan National Laboratory for Optoelectronics, China Time: 15:00-15:30, Saturday Afternoon, August 27, 2016
Location: Tongji Room(通济厅),3rd Floor, Ramada Xi’an Bell Tower Abstract Fiber gratings are periodic or quasi-periodic structures formed in optical fibers, which provide a very attractive platform for all-optical signal processing directly in optical fibers. The distinct advantages of fiber grating based signal processors include full compatibility with optical fiber systems, low insertion loss, compact size, ultrafast processing speed and tailorable bandwidth. In this presentation, we will first give an overview of fiber grating technology and then review our past and recent research on the design and fabrication of different complex fiber grating structures for all-optical signal processing.
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Invited Speech 9: Recent Advances in Chip-Scale Optical Signaling and
Processing on a Silicon Platform
Speaker: Prof. Jian Wang, Huazhong University of Science and Technology, China
Time: 15:30-16:00, Saturday Afternoon, August 27, 2016
Location: Tongji Room(通济厅),3rd Floor, Ramada Xi’an Bell Tower Abstract Silicon-on-insulator (SOI) is an attractive low cost integration platform for photonic integrated circuits (PICs) facilitating chip-scale optical signaling and processing. In this talk, we review recent advances in chip-scale optical signaling for interconnects and chip-scale optical pocessing for grooming functions. Using the fabricated silicon photonic devices, we demonstrate chip-scale terabit signaling using WDM OFDM m-QAM signals, chip-scale polarization and wavelength demultiplexing of OFDM m-QAM signals, chip-scale mode (de)multiplexing of OFDM m-QAM signals, chip-scale wavelength conversion of OFDM m-QAM signals, chip-scale optical data exchange of m-QAM signals, chip-scale high-dimensional optical computing using m-PSK signals, and chip-scale optical signal regeneration of PAM4 signals.
Invited Speech 10: Failure Criterion of Organic Photovoltaic Cells in Aqueous
Solutions
Speaker: Dr. Khaled Habib, Materials Science and Photo-Electronics Lab., IRE Program, EBR Center, Kuwait
Time: 16:15-16:45, Saturday Afternoon, August 27, 2016
Location: Tongji Room(通济厅),3rd Floor, Ramada Xi’an Bell Tower Abstract A criterion of the degradation/oxidation susceptibility of organic photovoltaic (OPV) cells in aqueous solutions was proposed for the first time. The criterion was derived based on calculating the limit of the ratio value of the polarization resistance of an OPV cell in aqueous solution (Rps.) to the polarization resistance of the OPV cell in air (Rpair.). In other words, the criterion; lim (Rps. /Rpair )=1 was applied to determine the degradation/oxidation of the OPV cell in the aqueous solution when Rpairbecame equal (increased) toRps.as a function of time of the exposure of the OPV cell to the aqueous solution. This criterion was not only used to determine the degradation/oxidation of different OPV cells in a simulated operational environment, but also, the criterion was used to determine the electrochemical behavior of OPV cells in deionized water and a polluted water with fine particles of sand. The values of Rpswere determined by the electrochemical impedance spectroscopy (EIS) at low frequency. In addition, the criterion can be applied under diverse test conditions with a predetermined period of
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OPV operations. Keywords: Degradation/Oxidation, Organic Photovoltaic (OPV) Cells, Power Conversion Efficiency (PCE) ; Electrochemical Impedance Spectroscopy (EIS), Aqueous Solutions.
Invited Speech 11: Millimeter-Wave/Terahertz Antennas and Integrated Circuits
for Imaging and 10Gbps Communications
Speaker: Prof. Sanming Hu, Southeast University, China
Time: 16:45-17:15, Saturday Afternoon, August 27, 2016
Location: Tongji Room(通济厅),3rd Floor, Ramada Xi’an Bell Tower Abstract Millimeter-wave (mmWave) and terahertz (THz)technologies have shown great potential for numerous applications including high-data-rate communication and biomedical imaging. Nevertheless, the realization and development of a compact, low-cost, and silicon-based mmWave/THz system is limited by some technical bottlenecks. This talk reviews our research work on the silicon-based mmWave/THz antennas with circuit chips for 10Gbps communications and biomedical imaging. This talk also explores emerging silicon processes (such as 3D through-silicon via) as well as new materials (including graphene) for mmWave/THz systems including antennas and chips.
Invited Speech 12: Acoustic Phase Cancellation on Broadband Ultrasonic
Speaker: Prof. Yi-Xian Qin, Stony Brook University, USA
Time: 17:15-17:45, Saturday Afternoon, August 27, 2016
Location: Tongji Room(通济厅),3rd Floor, Ramada Xi’an Bell Tower Abstract Quantitative ultrasound has been developed to evaluate trabecular bone mineral contents and structural integrity. The ultrasound parameters, i.e., normalized broadband attenuation (nBUA), have been widely used as indicators for bone health status. However, the reproducibility and accuracy of nBUA are influenced by the phenomena of phase cancellation. A 2-D array scanning ultrasound measurement system was developed for bone assessment using a receiver with an ultra- small aperture size to limit the phase cancellation effects on the physical receiver itself. The objectives of this study have two folds, 1) to accurately investigate the effects of phase cancellation and receiver aperture size on BUA calculation using an ultra-small receiver (aperture size: 0.2 mm) in a newly developed 2-D synthetic array-system, and 2)
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to evaluate the effects of phase cancellation on human trabecular bones. The tests of ultrasound BUA and micro-CT on the trabecular bone cylinders with a diameter of 25 mm. Both phase sensitive (PS) detection and phase insensitive (PI) detections were performed. Results show that phase cancellation does have a significant effect on BUA (e.g., PS nBUA is 8.1% higher than PI nBUA). Receiver aperture size also influences the BUA reading for both PI and PS detection and smaller receiver aperture tends to result in higher BUA readings. The data indicated that the average nBUA is 24.8±9.5 dB/MHz/cm and 19.2±5.5 dB/MHz/cm for PS and PI respectively. PS nBUA is 28.5% higher than PI BUA, which PS-nBUA can explain 81.2% of the variability in PI nBUA. Both PI-nBUA and PS-nBUA are highly correlated with BV/TV (R=0.911 and R=0.898, p<0.0001), and the Young’s modulus (R=0.9061 and R=0.822 p<0.0001), respectively.
Invited Speech 13: Optical and electronic properties of monomers of eumelanin: a
DFT and TD-DFT computational study
Speaker: Prof. Giancarlo Cappellini, Cagliari University, Italy
Time: 17:45-18:15, Saturday Afternoon, August 27, 2016
Location: Tongji Room(通济厅),3rd Floor, Ramada Xi’an Bell Tower Abstract We report a systematic investigation on the electronic and optical properties of four monomers which are elementary constituents of some the protomolecules of eumelanin. Eumelanin is the most important form of melanin which is one of the most universal natural pigments in living organisms. For the isolated monomers we performed all-electrons Density Functional Theory (DFT) and Time Dependent DFT (TDDFT) calculations with a localized Gaussian basis-set. For each monomer we deter-mined a series of molecular properties, namely electron a nities, ionization energies, fundamental energy-gaps, optical absorption spectra, andexciton binding energies. We discuss moreover the possible implications of the above electronic and optical properties of the single monomers with respect to the properties of a recently proposed tetrameric protomolecule of eumelanin.
Invited Speech 14: Dissipative soliton pulses in fiber lasers
Speaker: Dr. Xueming Liu, Xi’an Institute of Optics and Precision Mechanics of CAS, China
Time: 18:15-18:45, Saturday Afternoon, August 27, 2016
Location: Tongji Room(通济厅),3rd Floor, Ramada Xi’an Bell Tower
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Part IV Technical Sessions
Special Session: Ultrafast Laser Technology
Session Chair: Dr. Jiangfeng Zhu, Xidian University, China Jude Room(居德厅),3rd Floor 08:30-12:00, Sunday Morning, August 28, 2016 No. Paper Title Author Affiliation
70077 Fabrication and characterizations of planar
waveguide laser ceramics
Jiang Li Shanghai Institute of
Ceramics, Chinese
Academy of Sciences
70079 Q-switched or mode locked lasers with wide Yonggang
Wang
Shaanxi Normal
University
70087 High-repetition-rate Sub-Cycle Waveform
Synthesis
SHAOBO
FANG
Institute of Physics,
Chinese Academy of
Sciences
70095 Ultra-broadband WS2-based saturable absorbers
for erbium-doped fiber lasers
Wenjun Liu Beijing University of
Posts and
Telecommunications
70096 Fabrication of Phase-shifted fiber Bragg grating
by using femtosecond laser irradiation
Tao Chen Xi’an Jiaotong
University
70093 Micro optical vortex generator fabricated by
femtosecond laser
Zhen-Nan Tian Jilin University
70094 Sapphire based UV micro-optics elements
fabricated by femtosecond laser direct writing
and wet etching
Qiankun Li Jilin University
13 SOPO 2016 Conference Guide
Technical Session 1: Optical Communications & Optoelectronic Devices and
Integration
Session Chair: Dr. Shuping Wang, University of North Texas,USA Zhaoxing Room(昭行厅 ,) 3rd Floor 08:30-12:00, Sunday Morning, August 28, 2016
No. Paper Title Author Affiliation
70026 Spatial manipulation of Airy beams Hua Zhong Xi'an Jiaotong University
70028 Spatial control of light and the self-Fourier
beam in a harmonic potential
Liu Xing Xi'an Jiaotong University
70041 Hybird Correlation and squeezing of SP-FWM
and fluorescence in NV Center crystal
Zihai Jiang Xi’an Jiaotong University
70045 Simulation of Chirped Pulse Propagation in
Silicon Nanowires: Shape and Spectrum
Analysis
Hassan
Pakarzadeh
Department of Physics,
Shiraz University of
Technology, Shiraz, Iran
70056 Statistical Transform of Signal field with ASE
Noise through a Fiber Amplifier
Jing Huang Physics Department,
South China University of
Technology
70064 4-Pulsed Amplitude Modulation Optical
Downlink Signals Reception in Optical Access
Systems Using Different Bandwidth Optical
Bessel Filter
Fuping Chen Chongqing Three Gorges
University
70011 Optomechanical Design for Precision Lens
Positioning and Mounting
Shuping Wang University of North Texas
70022 A ultraviolet plasmonic waveguide for
nanolaser applications
Wang Yajuan Yanshan University
70035 Four-Wave Mixing of Extreme-UV Pulsewith
Rare Gas Ion
Hsuhsin Chu National Central
University
70091 Effect of ZnO seed layers on ZnO Nanorod
growth
Qiyan Zhang Nagoya Institute of
Technology
70092 Brightness enhancement of the AC Powder
Electroluminescence Using ZnO nanorods
Qiyan Zhang Nagoya Institute of
Technology
70010 Creating of New Diagnostic and Treatment Viacheslav Institute of Laser Physics
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Methods by Terahertz Laser Radiation
Fedorov
70089 Tip-enhanced Near-field Optical Microscopy
Based on a Plasmonic Lens/ Probe
Mingqian
Zhang
QianXuesen Laboratory
of Space Technology,
China Academy of Space
Technology
70043
( )Poster
Active Area Uniformity of InxGa1-xAs/InP
photodetectors
Tie Zhang Nan Jing University
70052
( )Poster
Fabrication and Investigation of The Mag-netic
Properties of Co and Co3O4 Nanoparti-cles
Fardin
Taghizadeh
Department of Physics,
College of Sciences,
Yasouj University
70051
(Poster)
The Study of Structural and Magnetic
Prop-erties of NiO Nanoparticles
Fardin
Taghizadeh
Department of Physics,
College of Sciences,
Yasouj University
Technical Session 2: Laser Technology and Applications & Medical and
Biological Applications
Session Chair: TBD Zhaoxing Room(昭行厅),3rd Floor 14:00-18:00, Sunday Afternoon, August 28, 2016
No. Paper Title Author Affiliation
70025 Spatial control of light via harmonic potential and
atomic topological insulators
Yiqi Zhang Xi'an Jiaotong
University
70031 The research of far-field diffraction and optical
limiting in hot atomic vapor
Qian Zhang Northwest University,
70032 How to Evaluate the High Power Lasers by
Coherent Beam Combination
Yang Liu Wuhan Mechanical
Technology College
70037 Demonstration of Parity–Time Symmetry in
Optically Induced Atomic Lattices
Zhaoyang
Zhang
Xi'an Jiaotong
University
70039 High-resolution Stark spectroscopy of Ba
highly-excited states by diode laser technique
Li Cheng Department of Physics,
Faculty of Science,
Toho University
70055 Study on High-Power Spectral-Flat 2-2.5 μm
Supercontinuum Laser Source
Ke Yin National university of
defense technology
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70057 Tuneable, Anomalous Mie Scattering Using
Partial Coherence
Yundou Yang
Wang
Northwestern
Polytechnical
University
70059 Cycle of phase, coherence and polarization
singularities in Young’s three-pinhole experiment
Xiaoyan Pang Northwestern
Polytechnical
University
70102 Analysis of optical properties of off-axis
reflective volume holographic grating
Zhenmin Shen Laboratory of Laser
Engineering and
Technology, Beijing
Institute of Mechanics &
Electricity
70030 An Implantable, Multi-Functional Neural Probe
based on Printed Microscale Optoelectronic
Devices
Xing Sheng Tsinghua University
70042
1310nm source spectral-domain optical
co-herence tomography for Chinese cultural
heritage research
Tingting Gang School of Physics,
Northwest University,
Shaanxi Xi’an
70105 Bioinspired fabrication of optical fiber SPR
sensors for immunoassays using
polydopamine-accelerated electroless plating
Se Shi Tianjin University
70062 A New Pulse Delta-Sigma CO2 NDIR Gas
De-tector
Chih-Hsiung
Shen
National Changhua
University of Education
70034
( )Poster
Interferometric Profile Measurement Based on
Subtraction and Addition of Optical Waves
Kuo-Chen Lang Nan-Kai University of
Technology
70038
(Poster)
Real Time Interferometric Ellipsometry Hui-Kang Teng Nan-Kai University of
Technology
70016
(Poster)
mRNA of expression of per 1 in mice bone
marrow mesenchymal stem cells irradiated by
red laser
Peng Fei Renmin Hospital of
Wuhan University
70029
(Poster)
The effect of 635nm red laser irradiation on
proliferation of bone marrow stem cells
Peng Fei Renmin Hospital of
Wuhan University
16 SOPO 2016 Conference Guide
Part V Abstracts
Special Session: Ultrafast Laser Technology
Article ID: 70077
Title: Fabrication and characterizations of
planar waveguide laser ceramics
Name: Jiang Li
Affiliation: Shanghai Institute of Ceramics, Chinese
Academy of Sciences
E-mail: [email protected]
Abstract
Laser ceramics have been well-developed with
remarkable advantages allowing for high doping,
large-size sample fabrication, homogeneous dopant
distribution, optical grade post-processing of low
cost, low-threshold broadly tenability, as well as
sophisticated but convenient engineering of
multilayer structures, which are regarded as
promising substitutes for the next generation of laser
gain media [1,2]. In particular, effective thermal
management of ceramic laser can be achieved by
using multilayer ceramics with different doping,
which was suitable for the application of a
high-power laser [3]. Nowadays, solid-state lasers
continue to occupy a prominent place among
different kinds of fields. In order to meet the
challenging requirements in the areas of laser power,
beam quality, efficiency, size and weight, it is
essential to optimize the structural designing of laser
gain media. Planar waveguide structure (PWs) has
peculiarities of low lasing thresholds, high gain, high
heat transmission and optical confinement with
respect to the traditional uniform bulk laser system,
which makes waveguide lasers suitable for high
power and compact devices. Taking the advantages
of both the RE:YAG ceramics and the planar
waveguide structure, it is very promising to construct
a compact, efficient and high power solid-state laser.
In this work, composite YAG/RE:YAG/YAG (RE
=Nd, Yb, Tm, Ho) transparent ceramics for planar
waveguide lasers were fabricated by tape casting and
vacuum sintering [4]. The fabrication and
characterizations of planar waveguide laser ceramics
were mainly discussed in this paper [5,6].
Article ID: 70079
Title: Q-switched or mode locked lasers with
wide
Name: Yonggang Wang
Affiliation: Shaanxi Normal University
E-mail: [email protected]
Abstract
Some novel solution saturable absorber (SA) such as
black phosphrous (BP), WS2 and MoS2 are
fabricated by liquid-phase-exfoliated method and
used for passively Q-switched Nd:YVO4 laser
successfully. Compared with traditional solid SA,
solution SA possesses more excellent optical
transparency and higher damage threshold. The
shortest pulse duration are measured to be 3 ns.
Similar solution absorbers are used in mode locking
of fiber lasers. The SA is fabricated based on a
D-shaped fiber (DF) embedded in Wide band
material solution. Such absorbers have virtues of
good antioxidant capacity, excellent scattering
resistance, high heat dissipation and high damage
threshold. Femtosecond laser pulses and picoseconds
laser pulses are obtained in Er doped fiber lasers and
Yb doped fiber lasers.
Article ID: 70087
Title: High-repetition-rate Sub-Cycle Waveform
Synthesis
Name: SHAOBO FANG
Affiliation: Institute of Physics, Chinese Academy
17 SOPO 2016 Conference Guide
of Sciences
E-mail: [email protected]
Abstract
Waveform Nonlinear Optics aims to study and
control the nonlinear interactions of matter with
custom-tailored sub-optical-cycle waveforms. In this
regime, the time-evolution of the optical electric field
deviates strongly from a sinusoidal carrier-wave
oscillation with in a single cycle of light, so that the
usual approximations of nonlinear optics break down,
and new phenomena and opportunities arise.
Specifically, a novel multi-channel parametric
synthesizer driven by a KW-level Yb pump-laser will
overcome pulse-energy and average-power
bottlenecks for advanced applications. Such intense
optical high-repetition-rate waveforms
custom-sculpted within an optical cycle open up new
horizons for controlling strong-field interactions in
atoms, molecules, solids and nanostructures.
Article ID: 70095
Title: Ultra-broadband WS2-based saturable
absorbers for erbium-doped fiber lasers
Name: Wenjun Liu
Affiliation: Beijing University of Posts and
Telecommunications
E-mail: [email protected]
Abstract
Saturable absorbers (SAs) can be used to generate
ultrashort pulses in fiber lasers with self-starting
operation and environmentally stable [1]. Compared
to other SAs, the tapered fiber SAs have higher
damage threshold, longer interaction length, and
wider spectral width [2]. In this paper, the fiber-taper
WS2-based SAs have been used in erbium-doped
fiber (EDF) lasers as illustrated in Fig. 1. The SAs
have been fabricated by depositing the WS2 on the
tapered fiber with the pulsed laser deposition method.
The length of the fiber-taper is 3 mm, and the waist is
12 μm. The saturable intensity is at of 34 MW/cm2,
the modulation depth is 25.48%, and the
non-saturable loss is 61% in Fig. 2. By rotating
HWPs and QWPs in Fig. 1, the EDF laser can be
mode-locking at 1540 nm. The fundamental cavity
repetition rate is 135 MHz, the electrical signal to
noise ratio (SNR) is 93 dB, and the timing jitter is
280 fs in Fig.3. The pulse duration is 67 fs, and the 3
dB spectral width is 114 nm, which is the widest
spectrum for the same type fiber lasers. By using
comparison experiment, we summarize the
corresponding parameters for the different
mode-locking scheme in Table 1. Those results
demonstrate that the fiber-taper WS2-based SAs are
promising devices for the ultra-broadband pulse
generation.
Article ID: 70096
Title: Fabrication of Phase-shifted fiber Bragg
grating by using femtosecond laser irradiation
Name: Tao Chen
Affiliation: School of Electronics & Information
Engineering, Xi’an Jiaotong University
E-mail: [email protected]
Abstract
Phase-shifted fiber Bragg gratings (PSFBG) have
found wide applications in optical fiber switch,
distributed feedback lasers, optical fiber filter,
wavelength division multiplexing and so on. Usually,
fabrications of PSFBG involve an elaborate setup. In
addition, PSFBG could only be fabricated in
photosensitive fibers. In this paper, we demonstrated
a method of fabricating PSFBG by using
femtosecond laser irradiation. The phase-shifted
zone was formed by using femtosecond laser raster
scanning in FBG. Phase shift could be varied by
changing the area of femtosecond laser scanning
zone and laser power. When the scanning length
along fiber axis was fixed, phase shift could be
accurately varied from 0 to 2π by control the
scanning line numbers. In addition, phase shifted also
increased with the increase of the length of the
phase-shifted zone. With the increase of laser power,
phase shift of PSFBG also increased, but loss was
18 SOPO 2016 Conference Guide
also increased. This method was meaningful for
fabricating PSFBG in fibers without photosensitivity.
Article ID: 70093
Title: Micro optical vortex generator fabricated
by femtosecond laser
Name: Zhen-Nan Tian
Affiliation: Jilin University
E-mail: [email protected]
Abstract
Light beams with a helical phase front which possess
an orbital angular momentum (OAM) along their
direction of propagation, can induce optical vortex
(OV) as focused. As a novel optical phenomenon,
OV beams hold the promise in various physical
mechanical, and technological appli-cations, such as
optical manipulation, optical communication,
quantum information, and astronomy. Over the past
decades, efforts have been made to fabricate and
design OV beams. Over the past decades, efforts have
been made to fabricate and design OV beams,
including the geometric method, hologram fork
dislocation grating, spiral phase plate, hollow optical
fiber, and changing optical parametric oscillator. The
above-mentioned methods are typical approaches to
obtain OV beams and greatly broaden their
applications.
Here, we fabricated spiral phase plate (SPP) on the
surface of Lithium niobate (NL) and spiral zone plate
in LN with femtosecond laser direct writing
(FsLDW). The optical properties were demonstrated
in the experiment, which is consistent with the
theoretical simulation. This method can greatly
simplify the OV generator and improve the
integration of optical systems. Our findings open up a
new avenue to realize highly integrated optical
element and offer great convenience to their practical
applications in optical manipulation and quantum
communication.
Article ID: 70094
Title: Sapphire based UV micro-optics elements
fabricated by femtosecond laser direct writing
and wet etching
Name: Qiankun Li
Affiliation: Jilin University
E-mail: [email protected]
Abstract
Sapphire is one of the most widely used optical
materials for its excellent optical transparency from
Mid-IR to UV and high hardness, thermal and
chemical stabilities. For example, it can be used for
never-worn optical window of cameras and watches,
and especially harsh-condition-applicable windows
of military infrared devices and space optics.
However, some advantages and features of sapphire,
such as chemical inertness and the largest hardness
among oxide, make it difficult to process
mechanically or chemically on the other hand.
Traditional mechanical polishing process has
limitations of high side damage, frequent rupture and
tool wearing. As for chemical etching, etching speed
is usually slow and changes with crystal lattice
orientation, resulting in problems of processing
efficiency and controllability. Lithography and
nano-imprint could fabricate antireflec-tive
sub-wavelength gratings on sapphire for light
extraction efficiency enhancement, compared with
direct laser writing, they have many drawbacks such
as high costs, mask depended and com-plicated
process. Here, we report sapphire-based Fresnel zone
plate (FZP) and Dammann gratings (DGs), which is
fabricated by femtosecond laser direct writing
(FsLDW) assisted with subsequent wet etching. With
this method, we solved the problem of high surface
roughness caused by ultrafast femtosecond laser
processing. Ultraviolet light focusing and imaging
can be easily achieved by fabricated Fresnel zone
plate. DGs that generated 2 × 2, 3 × 3, 4 × 4, and 5 × 5
spot sources in the fan-out as designed, and exhibited
diffraction efficiency of 52%, 40%, 29%, and 53%,
respectively, comparable with theoretical values. Due
to the high material hardness, thermal and chemical
sta-bilities of sapphire, such sapphire FZP may have
19 SOPO 2016 Conference Guide
great potential in UV imaging under some harsh
environments. And sapphire-based DGs show great
potential in UV beam shaping, UV beam splitting and
laser parallel micro-processing.
Technical Session 1: Optical Communications & Optoelectronic Devices and
Integration
Article ID: 70026
Title: Spatial manipulation of Airy beams
Name: Hua Zhong
Affiliation: Xi'an Jiaotong University
E-mail: [email protected]
Abstract
Spatial manipulation of Airy beams
Hua Zhong, Yiqi Zhang*, and Yanpeng Zhang
Key Laboratory for Physical Electronics and Devices
of the Ministry of Education & Shaanxi Key Lab of
Information Photonic Technique, Xi’an Jiaotong
University, Xi’an 710049, China
*Corresponding author: [email protected]
We investigate spatial manipulation of Airy beams in
two aspects: (1) We demonstrate that finite energy
circular Airy beams can be effectively manipulated
by different dynamic linear potentials. We find that
the autofocusing effect can be either strengthened or
weakened, due to the concrete profile of the linear
potential. (2) We discover that fractional Airy–Talbot
effect by superposing Airy beams with
equal-distance transverse displacements if the
coefficients of the components are properly chosen.
Our results broaden the potential applications of Airy
beams in trapping and manipulating microparticles,
offering potential use in optics, biology and other
disciplines.
Article ID: 70028
Title: Spatial control of light and the self-Fourier
beam in a harmonic potential
Name: liu xing
Affiliation: school/student
E-mail: [email protected]
Abstract
We analytically investigate the propagation of light
beam in a harmonic potential with the following two
aspects: (1) we investigate an anharmonic
propagation of noncentrosymmetric two-dimensional
beams carrying orbital angular momentum in a
harmonic potential. (2) Based on the propagation in
parabolic potential, we show a class of
optically-interesting beams that are self-Fourier
beams – the corresponding Fourier transform is the
beam itself.
Article ID: 70041
Title: Hybird Correlation and squeezing of
SP-FWM and fluorescence in NV Center crystal
Name: zihai jiang
Affiliation: Xi’an Jiaotong University
E-mail: [email protected]
Abstract
We investigate intensity noise correlation and
intensity difference squeezing of hybrid signal
generated in spontaneous parametric four-wave
mixing (SP-FWM) and multi-order fluorescence (FL)
signals in diamond NV center (NV0 and NV-)
experimentally and theoretically. It is found out that
20 SOPO 2016 Conference Guide
the competition between the composite
(SP-FWM+FL) signals through dressing effect
determines the two-stage line shape of correlation
and magnitude of squeezing, which can be controlled.
We also investigate damped Rabi oscillations, double
peaks and two lifetimes of the signals in time domain.
The associated results may be applicable in
all-optical communication and optical information
processing on photonic chips.
Article ID: 70045
Title: Simulation of Chirped Pulse Propagation
in Silicon Nanowires: Shape and Spectrum
Analysis
Name: Hassan Pakarzadeh
Affiliation: Department of Physics, Shiraz
University of Technology, Shiraz, Iran
E-mail: [email protected]
Abstract
In this paper, we simulate the propagation of chirped
pulses in silicon nanowires by solving thr nonlinear
Schrödinger equation (NLSE) using the split-step
Fourier (SSF) method. The simulations are
performed both for the pulse shape (time domain)
and for the pulse spectrum (frequency domain), and
various linear and nonlinear effects changing the
shape and the spectrum of the pulse are analyzed.
Owing to the high nonlinear coefficient and a very
small effective-mode area, the required length for
observing nonlinear effects in nanowires is much
shorter than that of conventional optical fibers. The
impacts of loss, nonlinear effects, second- and
third-order dispersion coefficients and the chirp
parameter on pulse propagation along the nanowire
are investigated. The results show that the sign and
the value of the chirp parameter have important role
in pulse propagation so that in the anomalous
dispersion regime, the compression occurs for the
up-chirped pulses, whereas the broadening takes
place for the down-chirped pulses. The opposite
situation happens for up-and down-chirped pulses
propagating in the normal dispersion regime.
Article ID: 70056
Title: Statistical Transform of Signal field with
ASE Noise through a Fiber Amplifier
Name: Jing Huang
Affiliation: Physics Department, South China
University of Technology, Guangzhou, China
E-mail: [email protected]
Abstract
While the signal field+ASE noise pass through a span
of transmission fiber, a dispersion compensation
grating and a fiber amplifier(with the generation of
ASE noise), the nonlinear Fokker-Plank equations,
describing the field’s probability transforms, are
established and solved. Based on these statistical
theories, the probability distributions of the signal
+ASE noise field through 50km NZDSF, a dispersion
compensation grating and a fiber amplifier link, are
obtained. The dispersion and nonlinear effects in
transmission fiber induce frequency offsets in the
probability distribution of field and they can not be
dissipated by dispersion compensation. The
generation of ASE noise in the amplifier will
accelerate this frequency offset.
Article ID: 70064
Title: 4-Pulsed Amplitude Modulation Optical
Downlink Signals Reception in Optical Access
Systems Using Different Bandwidth Optical
Bessel Filter
Name: Fuping Chen
Affiliation: College of Electronic and Information
Engineering,Chongqing Three Gorges Univers
E-mail: [email protected]
Abstract
A novel scheme which can realize high-speed optical
signals transmission and reception by using 4-pulsed
amplitude modulation (4-PAM) and demodulation in
10Gb/s passive optical access systems with different
bandwidth optical Bessel filter (OBF), is introduced.
In this scheme, a PAM sequence generator module, a
M-ary pulse generator module and one
21 SOPO 2016 Conference Guide
Mach-Zehnder intensity Modulator(MZM) are
employed for generating the 10Gb/s optical 4-PAM
signals. And then, the generated optical 4-PAM
signal is achieved transmission over 20km single
mode fiber (SMF) for downstream(DS) access links
application. Finally, the optical 4-PAM signal after
transmission is directly detected and demodulated.
We measure time-domain sequential waveform
curves, optical spectrum curves, and eye-diagrams,
and analyze the receiver sensitivity of 10Gb/s 4-PAM
signals before and after transmission. The received
performance of the optical 4-PAM signals after
transmission over 20km single mode fiber (SMF)
with different bandwidth OBF has been also
analyzed.
Article ID: 70011
Title: Optomechanical Design for Precision Lens
Positioning and Mounting
Name: shuping wang
Affiliation: University of North Texas
E-mail: [email protected]
Abstract
The proper choice of optomechanical components
along with alignment techniques is vital to the
successful implementation of lens positioning and
mounting. In general there is a trade-off between lens
positioning accuracy and manufacturing cost. In
order to achieve optimal precision-to-cost ratio a
careful optomechanical design together with accurate
alignment and assembly is necessary. This paper
presents a lens positioning and mounting in a few
microns accuracy using a kinematic mount module.
The optomechanical design of the kinematic mount
module and the associated fixtures based on the
simulation study of components sensitivity are
presented. The processes for alignment and assembly,
which separate decenter from tip-tilt, are developed
and presented. Finally, the prototypes are created and
testing results are presented. The optomechanical
design that allows the separation of decenter from
tip-tilt considerably simplifies the positioning and
assembly process and reduces the cost for mass
production.
Article ID: 70022
Title: A ultraviolet plasmonic waveguide for
nanolaser applications
Name: wang yajuan
Affiliation: Institute of Electrical Engineering,
Yanshan University
E-mail: [email protected]
Abstract
In this paper, a novel hybrid plasmonic waveguide
with a metal ridge and a MgF2 dielectric layer is
demonstrated at ultraviolet band. We investigate the
propagation distance, the scaling factor and the figure
of merit by using the finite element method. The
structure enables low scaling factor and long
propagation distance. Compared to the previous
structure with a metal plate, this waveguide has better
performance. And the structure can be used as a
nanolaser and has broad application prospects in
optoelectronic integrated circuits, biological
detection and so on.
Article ID: 70035
Title: Four-Wave Mixing of Extreme-UV
Pulsewith Rare Gas Ion
Name: Hsuhsin Chu
Affiliation: National Central University
E-mail: [email protected]
Abstract
In the past decades, several kinds of coherent
extreme-UV (EUV)/x-ray sources have been
developed with ultrashortdurations and ultrahigh
intensities, such as x-ray free electron laser and
high-harmonic generation (HHG). Therefore, it is
possible to explore the science of EUV/x-ray
nonlinear optics now. There are severalEUV/x-ray
nonlinear interactions have been demonstrated. For
example, non-collinear wave mixing of EUV
22 SOPO 2016 Conference Guide
andoptical pulses is obtained in high-harmonic
generation process [1]. Four-wavemixing with
EUVtransient gratings on SiO2 [2], x-ray/optical
sum-frequency generation in diamond [3], and x-ray
second harmonicgeneration in diamond [4] have
been achieved by using EUV/x-ray free electron
lasers. In these experiments, the measured
conversion efficiency range from 10−11 to 10−7.
In this presentation, we propose to use rare gas ions
as the interacting medium, which canbe prepared by
using an intense near-IR (NIR) pulse focused onto a
rare gas jet. The intense NIR pulse ionizes thegas
atoms to a proper ionization stage through
optical-field ionization at its front edge, then mixes
with the followingEUV pulse by the ions. If the
ionization potentials of the remaining electrons in the
ion are larger than the EUVphoton energy,
photoionization will not occur and absorption of the
EUV pulse can be greatly reduced. However,
theremaining electrons can still provide the required
response for nonlinear wave mixing.
Insuch kind of isotropic system, third-order
nonlinearity is the dominant nonlinearresponse.
Therefore, we plan to demonstrate the four-wave
mixing(FWM) of one EUV photon and two NIR
photons. We numerically calculatethe third-order
nonlinear polarizability of Ar3+ ions with the
combinationof R. D. Cowan’s Atomic Structure
Code [5] and Wigner-Eckart theorem. As a result of
that the ionization potential of the forth electron of Ar
is 59.81 eV, the Ar3+ ion canbe used for the EUV
waves with wavelengths longer than 20.7 nm.
Thecalculation result ranges from 10−65 to 10−61
coul-m4/volt3 for the interaction of one EUV(30–45
nm) photon and two NIR (810 nm) photons. Then,
we propose an experimentwith a 1-μJ EUV pulse (45
nm) and a 50-mJ NIR (810 nm) pulse mixed in
a2-mm Ar gas jet. The expected FWM output (40.5
nm) is about 1 nJ, corresponding toa conversion
efficiency of 10−3. As a result of thatthe technique of
NIR pulse waveform control is well-developed, it can
be transferred to EUV pulse though theproposed
FWM process. Therefore, this would not only be a
demonstration of EUV wave mixing, but also be a
newmethod of EUV waveform control.
Article ID: 70091
Title: Effect of ZnO seed layers on ZnO Nanorod
growth
Name: Qiyan Zhang
Affiliation: Nagoya Institute of Technology
E-mail: [email protected]
Abstract
Nano scaled one dimensional oxide semiconductors
are responsive materials for electric devices. Zinc
oxide (ZnO) nanorods are demonstrated to be
applicable for optoelectronic devices such as
ultraviolet (UV) laser(1), direct current nano
generators(2), semiconductor sensitized solar cells(3)
and active matrix liquid crystal display (4). In our
previous studies, ZnO nanorods were also use to
enhance light emission intensity of Powder
Electroluminescence.
Hydrothermal synthesis is a simple and economized
approach, which enables the large production of ZnO
nanorods at low temperature. In this method, ZnO
nanorods are grown on seed layers prepared on the
substrate (Fig.1). In the previous study on the
formation of ZnO nanostructures through
hydrothermal synthesis, the characteristic of ZnO
seed layers is suggested to affect strongly on the
structural parameters of produced
nanostructures(5)(6).
Here, we investigated the effect of seed layers on
ZnO nanorods through the fabrication of ZnO
nanorods on ZnO seed layers with controlled
thickness and further annealing. ZnO seed layers
were fabricated on c-axis sapphire substrate by
Magnetron sputtering. The prepared layer was
annealed at N2 atmosphere. The flatness and
crystallinity of ZnO seed layer were observed to be
improved by annealing at higher temperature and
increasing thickness of the seed layer. Then, ZnO
nanorods were fabricated on ZnO seed layers by
hydrothermal synthesis. As a result, we found that
size and filling rate of ZnO nanorods were influenced
23 SOPO 2016 Conference Guide
by crystallinity of seed layer.
By tailoring seed layer condition, desired
morphology of ZnO nanorods will be obtained, and
consequently improvement or optimization of
enhanced EL emission will be realized.
Article ID: 70092
Title: Brightness enhancement of the AC Powder
Electroluminescence Using ZnO nanorods
Name: Qiyan Zhang
Affiliation: Nagoya Institute of Technology
E-mail: [email protected]
Abstract
The Powder electroluminescent (EL) device is a flat
light emitting device which can be developed by a
printing process. It is made up of a phosphor layer
containing an inorganic phosphor and a dielectric
layer containing a dielectric ceramic particles, and
sandwiched between two plane electrodes[1]. In this
study, we added the ZnO nanorods between the plane
electrode and the phosphor layer, for the brightness
enhancement of the device was observed.
Structure of the EL device using ZnO nanorods is
shown as fig.1. The ZnO seed layer was prepared by
spin coating method on the ITO/quartz substrate. on
the seed layer ZnO nanorods were grown by
hydrothermal synthesis method. As a reference
sample, a substrate of only ZnO seed layer was
prepared. To fabricate the EL devices, first a
phosphor layer and a dielectric layer were fabricated
by spin coating on the respective substrate, then a
back electrode of silver was formed by the vacuum
deposition method. The observation of the ZnO
nanorods and the seed layer was carried out by a
scanning electron microscope (SEM). The
measurement of the transmission spectrum was
performed by UV-visible spectrophotometer. And the
intensity of light emission was measured from the
quartz substrate side.
Voltage-Emission intensity characteristic of each EL
devices are shown in the Fig.2. The frequency of the
power supply is 60 Hz, and voltage is changed from
20V to 120V. The emission intensity of device with
ZnO nanorods is observed to be enhanced compared
to that with seed layer.
Article ID: 70010
Title: Creating of New Diagnostic and Treatment
Methods by Terahertz Laser Radiation
Name: Viacheslav Fedorov
Affiliation: Institute of Laser Physics
E-mail: [email protected]
Abstract
Creating of New Diagnostic and Treatment Methods
by Terahertz Laser Radiation
V.I. Fedorov
Laboratory of Biophysics, Institute of Laser Physics
SB RAS, Prospekt Lavrentyeva 13/3, Novosibirsk,
Russia, 630090
e-mail address:[email protected]
Abstract—The report emphasizes the importance of
the study of terahertz radiation biological effects as
another direction in the creation of diagnostic and
therapeutic methods, along with terahertz imaging
and terahertz spectroscopy. Therapeutic and
diagnostic use of laser terahertz radiation based on
the results of pre-conducted fundamental research of
biological effects of terahertz radiation at the
organismic, cellular and molecular levels presents.
Keywords—terahertz radiation; biologic effects;
treatment; diagnostics.
I. TREATMENT
The investigation of terahertz effects on organism
level lets to use the terahertz radiation as treatment
factor. It was demonstrated the dose-dependent
influence of terahertz radiation on rat spleen cell
production of antibodies to sheep red blood cells and
on migration ability of B-lymphocytes in antigen
presence. In addition it was demonstrated the
dose-dependent influence of THz radiation on stage
of bone regeneration in rats with experimental defect
of femur. These results allowed to use the
24 SOPO 2016 Conference Guide
gas-discharge HCN laser (0,89 THz) for treatment
traumatic and degenerative disorders in bone and
cartilage tissues. Treatment of rats with experimental
mechanical damage to the skin demonstrates the
decrease in wound area. Terahertz irradiation of
patients with post-operative and post-traumatic
mechanical skin lesions demonstrates the next results
of treatment: the acceleration of wound healing, the
prevention of post-operative and post-traumatic
suppuration of wounds, the increase in contraction of
wound surface, the stimulation of regenerative ability
and optimization of cellular composition of wound
exudate. Terahertz irradiation of volunteers with
spinal osteochondrosis induces positive dynamics of
metabolism indices in the cartilage (normalization of
chondroitin sulfate and glycosaminoglycans serum
levels). Experimental treatment of grafted Guerin
carcinoma by terahertz radiation demonstrates the
reduction of tumor growth.. Degree of tumor growth
reduction after terahertz treatment and x-rays
treatment are identical.
II. DIAGNOSTICS
Terahertz radiation causes more pronounced increase
of mitogen-induced proliferation of lymphocytes. It
was found that among healthy persons there are the
individuals with initially low proliferative activity of
lymphocytes. Responses of lymphocytes to terahertz
irradiation were different. There is or the absence of
proliferous potential ability or pronounced
proliferous potential ability. In the first case there is
an insufficiency of immune system , in the second
case – the lesion of regulation of immune system. It
may be used at asymptomatic and early stages of
different diseases, which induced by immune
insufficiency: all diseases of internal organs,
oncologic diseases, autoimmune diseases etc. It can
be a base for creating the diagnostic test to evaluate
the ability of lymphocytes to proliferation and apply
it to identify individuals at the early stages of
different diseases, which induced by immune
insufficiency: all diseases of internal organs, different
hematological diseases, oncologic diseases,
autoimmune diseases etc. This may facilitate the
identification of trends to failure of the immune
system in healthy individuals.
It was demonstrated that terahertz radiation results in
a viability reduction in part of irradiated lymphocytes.
This is tested by the appearance in cytoplasm the
colorant penetrating only nonviable cells. Based on
this result it is possible to create the diagnostic test
for identifying of potentially nonviable lymphocytes
and used it to identify healthy individuals which have
the early stages of various hematological disorders,
different variations of immune system disturbance
and other diseases that lead to such violations.
Terahertz radiation induces a specific state, which in
combination with provoking factor reveals to
morphological or functional abnormalities which are
undiagnosable by traditional methods. The study of
terahertz radiation influence on membrane stability
of red blood cells demonstrates that terahertz
radiation does not influence spontaneous hemoglobin
output, but increases the hemoglobin output induced
by water adding to isotonic buffer solution
(hypoosmotic hemolysis). This effect is increased if
the concentration of sodium chloride solution is
decreased. Terahertz radiation causes pronounced
shorting of duration of full hypoosmotic hemolysis.
Results of these experiments can be a premise for
creating the diagnostic test for identifying a tendency
to disturbance of red blood cell membrane resistance
in healthy individuals for recognition of early stage
of various hematological, nephrological,
endocrinological and other diseases which are
associated with impaired membrane status of these
cells.
Article ID: 70089
Title: Tip-enhanced Near-field Optical
Microscopy Based on a Plasmonic Lens/ Probe
Name: Mingqian Zhang
Affiliation: QIan Xuesen Laboratory of space
technology
E-mail: [email protected]
Abstract
Tip-enhanced near-field optical microscopy is a
25 SOPO 2016 Conference Guide
promising scanning probe technique for exploring
near-field optical properties of individual objects and
structures on the nanoscale. It is capable of obtaining
corresponding topographical and optical information
with resolution beyond the diffraction limit and
grants remarkable localized optical signal
enhancement. This technique uses a sharp metallic
tip regulated in the near-field of a specimen’s surface,
which is illuminated with a proper excitation field
meeting the excitation conditions of the wave-vector
matching. The local optical field interacted with the
specimen in the vicinity of the tip apex is effectively
enhanced. In this technique, the signal enhancement
near the antenna is attributed to the excitation of
localized surface plasmons and the lighting-rod
effect. Typically, a tip-enhanced near-field optical
microscope is composed of a scanning probe
microscope, excitation/ collection optical
configuration, and a detection device. In this
technique, how to optimize the tip-excitation field
coupling to improve the detection sensitivity is of
crucial importance and receives great research
attentions.
In this work, two kinds of methods are presented to
improve the signal to noise ratio of tip-enhanced
near-field optical microscopy by both strengthen the
near-field optical signal enhancement and reducing
the far-field background noise. First, a tip-enhanced
near-field optical microscope based on a plasmonic
lens is investigated. A symmetry-breaking strcture
plasmonic lens is specifically designed for focusing
the surface evanescent wave and generates a
longitudinal field dominated excitation field. The
focusing property of the longitudinal field by the
plasmonic lens is theoretically simulated and
experimentally investigated. It is demonstrated that
the plasmonic lens is suitable for providing the
longitudinal field excitation foe local field
enhancement on a tip antenna. Then, the plasmonic
lens is utilized in the excitation configuration of the
tip-enhanced near-field optical microscope to replace
a conventional objective lens. Second, a plasmonic
probe which consisted of a taper cylinder tip and a
couple of curved nanoslits on the probe base was
designed. It is suitable to be used in top-illumination
mode tip-enhanced near-field optical microscope to
isolate the focused near-field excitation at the probe
apex from the contribution of the far-field
illumination. The field enhancement and the
confinement performance of the probe were
investigated using three-dimensional
finite-difference time-domain method. The structure
of the probe was optimized and fabricated with FIB
method. The field enhancement performance of the
plasmonic probe was theoretically simulated and
experimentally detected.
Article ID: 70043
Title: Active Area Uniformity of InxGa1-xAs/InP
photodetectors
Name: Tie Zhang
Affiliation: Nan Jing University
E-mail: [email protected]
Abstract
The extended wavelength InxGa1-xAs photodetector
can cover the short-wavelength infrared range
(SWIR 1-3μm) and have been extensively
investigated in the past ten years due to their
significant applications in environmental research,
earth observation, night vision, etc. In order to
receive the InxGa1-xAs photodetector with the
cut-off wavelength from 1.7μm to higher one, x
should increase from 0.53. Many reference report
that there exist the large numbers of traps due to the
lattice mismatch between the InGaAs absorption
layer and substrate layer. On the other hand, for the
mesa type photodiodes, not only the bulk defect but
mesa edge of the device destroy the optical properties
of the detectors. Low surface recombination is
obviously one of the prerequisites to reach the low
leakage and high efficiencies of mesa-type InGaAs
photodiodes.
Article ID: 70052
Title: Fabrication and Investigation of The
26 SOPO 2016 Conference Guide
Mag-netic Properties of Co and Co3O4
Nanoparti-cles
Name: Fardin Taghizadeh
Affiliation: Department of Physics, College of
Sciences, Yasouj University, Yasouj 75914-353,
E-mail: [email protected]
Abstract
The nanoparticles exhibit some novel optical and
magnetic properties, which are different from its bulk
material. Cobalt oxide has been known as a
semi-conductor compound of p type with a Spinel
structure. Therefore, they are used as gas sensor and
absorbent of solar energy. Furthermore, they are
employed as an effective catalyzer in environmental
clearing. In the thermal gradation method, carbonyl
cobalt Co2(CO)8 is often used as a precursor, though
cobalt carbonyl is very toxic and expensive.
Magnetic compounds have been among interesting
issues for human beings for over 4000 years. In large
societies, magnetic compounds including computer
disks, credit cards, speakers, coolers, automatic doors,
and many other devices can be observed on a daily
basis. The structure and morphology of as-prepared
Co3O4 nanoparticles were characterized by X-ray
diffraction (XRD), transmission electron microscopy
(TEM) and vibrating sample magnetometer (VSM).
The TEM images showed that the product
nanoparticles consisted of dispersive quasi-spherical
particles with a narrow size distribution ranged from
5 to 15 nm and an average size around 10 nm. The
magnetic measurements confirmed that the Co3O4
nanoparticles show a little ferromagnetic behavior
which could be attributed to the uncompensated
surface spins and finite size effects. The
ferromagnetic order of the Co3O4 nanoparticles is
raised with increasing the decomposition
temperature.
Article ID: 70051
Title: The Study of Structural and Magnetic
Prop-erties of NiO Nanoparticles
Name: Fardin Taghizadeh
Affiliation: Department of Physics, College of
Sciences, Yasouj University, Yasouj 75914-353,
E-mail: [email protected]
Abstract
Nickel Oxide (NiO) is an important transition metal
oxide with cubic lattice structure. Among the
magnetic nanoparticles, fabrication of nickel
nanoparticles is often more difficult than the other
particles. This is because they are easily oxidized. To
achieve pure nickel nanocrystals, numerous methods
have been conducted in organic environments in
order to prevent formation of hydroxide or oxidation.
In the present work, we report the synthesis of NiO
nanoparticles.
Magnetic properties of NiO nanoparticles with
different sizes and at different temperatures are
compared. The phase structures, particle sizes and
magnetic properties of NiO nanoparticles have been
characterized by X-ray diffraction, TEM images and
vibrating sample magnetometer (VSM).
We collected the experimental data reported in the
literature, for the same conditions, and after fitting,
extrapolating and doing some calculations. The
magnetization for smaller nanoparticles are bigger,
for the samples we consider here. This difference
could be explained by the difference of surface
volume ratio of nanoparticle which shows the
contribution of the paramagnetic surface is more
important with respect to the anti-ferromagnetism of
the core for smaller particles. Also the nanoparticle at
lower temperatures shows bigger magnetization.
27 SOPO 2016 Conference Guide
Technical Session 2: Laser Technology and Applications & Medical and
Biological Applications
Article ID: 70025
Title: Spatial control of light via harmonic
potential and atomic topological insulators
Name: Yiqi Zhang
Affiliation: Xi'an Jiaotong University
E-mail: [email protected]
Abstract
We investigate spatial control of light, and the
research contains two parts. The first part we focus
on the influence from a harmonic potential [1], and
the second part is about the atomic topological
insulators [2]. The details are:
1. In a fractional Schrödinger equation with a
harmonic potential, we find that the propagation of
one- and two-dimensional input chirped Gaussian
beams is not harmonic. In one dimension, the beam
propagates along a zigzag trajectory in real space,
which corresponds to a modulated anharmonic
oscillation in momentum space. In two dimensions,
the input Gaussian beam evolves into a breathing ring
structure in both real and momentum spaces, which
forms a filamented funnel-like aperiodic structure.
The beams remain localized during propagation.
2. The interference of three coupling fields will
split energy levels periodically, to form a periodic
refractive index structure with honeycomb profile
that can be adjusted by different frequency detunings
and intensities of the coupling fields. This in turn will
affect the appearance of Dirac cones in momentum
space. When the honeycomb lattice sites are helically
ordered along the propagation direction, gaps open at
Dirac points, and one obtains a photonic Floquet
topological insulator (PFTI) in an atomic vapor. Due
to the confinement of edge states, beams will be able
to move along the edge of the PFTI without
scattering energy into the bulk. The formed PFTIs in
atomic ensembles can be easily controlled and
reconfigured by adjusting the frequency detunings,
coupling field intensities, and higher-order nonlinear
susceptibilities.
Article ID: 70031
Title: The research of far-field diffraction and
optical limiting in hot atomic vapor
Name: qian zhang
Affiliation: Institute of Photonics
&Photon-Technology, Northwest University, Xi’an ,
China
E-mail: [email protected]
Abstract
In this work, we characterize the far-field diffraction
ring patterns in hot atomic vapor cell ( ) by setting the
sample cell at various sample positions. The results
indicated that bright central spots would appear using
a diverging beam and a dark spot would appear using
a convergent beam. An exception for a convergent
beam happened if the sample cell was set close to the
focus point, this phenomenon was well explained by
the Kerr effect together with the thermally induced
optical nonlinearity and simulated by
Fresnel-Kirchhoff diffraction integral formula. In
addition, we found the optimal position of the sample
cell where the lowest limiting threshold and clamp
output are the lowest in the optical limiting.
Article ID: 70032
Title: How to Evaluate the High Power Lasers by
Coherent Beam Combination
Name: yang liu
Affiliation: Wuhan Mechanical Technology College
E-mail: [email protected]
Abstract
Coherent combination of laser beam is an important
28 SOPO 2016 Conference Guide
and challenging area of high power laser science, and
how to evaluate the high power laser by coherent
beam combination is a new research spot. Formulas
for the radiated intensity distributions of coherent
combined Gaussian beam array are derived via
Fraunhofer scalar diffraction model by utilizing
representations of the cross-spectral density of the far
field. Effects of beam array numbers and separate
distances etc. on far field radiated profiles are shown
and analyzed. A new conception named power in the
bucket of the main lobe (〖PIB〗_m) is advanced to
measure the beam quality of combined beams. This
evaluation method is useful for efficiently
determining the peak irradiance and power in the
bucket for single emitting apertures of general shape.
Article ID: 70037
Title: Demonstration of Parity–Time Symmetry
in Optically Induced Atomic Lattices
Name: zhaoyang zhang
Affiliation: Xi'an Jiaotong University
E-mail: [email protected]
Abstract
Parity-time (PT) symmetry in optics has been
experimentally demonstrated recently in several
coupled gain-loss solid-state material systems by
purposefully engineering the refractive indices.
Many intriguing and applied features emerge under
such PT-symmetry platform, such as power
oscillations, optical solitons in PT-symmetric lattices,
and nonreciprocal light transmission. Considering
that multi-level atomic gases are quite efficient in
constructing desired refractive index profiles,
schemes based on atomic coherence have been
recently proposed to realize optical potentials
involving PT-symmetric properties. For the first time,
we have experimentally realized optical lattice with
tunable gain-loss waveguides in a
coherently-prepared four-level N-type atomic system.
Particularly, an abrupt phase shift jump has been
clearly observed which indicates the PT-symmetry
breaking by appropriately tuning the pertinent atomic
parameters. The experimental demonstration of such
readily reconfigurable, effectively controllable and
low-cost PT-symmetric periodic structures sets a new
stage in better understanding various properties of PT
symmetry optics and realizing desirable applications.
Article ID: 70039
Title: High-resolution Stark spectroscopy of Ba
highly-excited states by diode laser technique
Name: Li Cheng
Affiliation: Department of Physics, Faculty of
Science, Toho University
E-mail: [email protected]
Abstract
High-resolution atomic-beam laser spectroscopy has
been performed to study Stark effect of Ba atom.
Stark spectra have been observed at various electric
fields for Ba highly excited states. The scalar
polarizability of the transition from 6s5d 3D2 to 5d6p
3F3 at 728.0 nm and the tensor polarizability of the
3F3 level have been determined for the first time, to
be αs = 89.8(12) kHz/(kV/cm)2 and αt = 133.7(20)
kHz/(kV/cm)2, respectively.
Article ID: 70055
Title: Study on High-Power Spectral-Flat 2-2.5
μm Supercontinuum Laser Source
Name: Ke Yin
Affiliation: National university of defense
technology
E-mail: [email protected]
Abstract
2-2.5 μm supercontinuum (SC) laser sources locate at
the infrared atmospheric window, indicat-ing that
there are lots of important atmospheric applications
of these broadband sources. In this paper, a
spectral-flat 2-2.5 μm SC source with optimized
maximum output power of >200 W is re-ported by
adopting a cladding pumped thulium-doped fiber
amplifier. The underlying physical mechanisms
29 SOPO 2016 Conference Guide
behind the SC generation process are investigated
firstly with a numerical model which includes the
fiber gain and loss, the dispersive and nonlinear
effects. Simulation results show that abundant soliton
pulses are generated in the TDFA, and they are
shifted towards the long wavelength side very
quickly with the nonlinearity of Raman soliton
self-frequency shift (SSFS), and eventually the
Raman SSFS process is halted due to the silica fiber’s
infrared loss. A spectrally-flat 2-2.5 μm SC source
could be generated as the result of the spectral
superposition of these abundant soliton pulses. These
simulation results correspond qualitatively well to
the following experimental results.
The evolutions of the output spectrum and power of
the SC source and temperature of the fiber endcap are
investigated in details. When the repetition rate of the
seed pulses is 2 MHz and 4 MHz, the obtained
maximum output power of the 2-2.5 μm SC laser
source is 157 W and 203.4 W, which corresponds to a
3 dB spectral bandwidth of 550 and 545 nm,
respectively. At the highest output power, the power
spectral intensity is calculated to be as high as 370
mW/nm, which is the bright-est 2-2.5 μm SC laser
source ever reported. The results indicate that by
increasing the repetition rate of the seed pulses, the
SC conversion efficiency of the fiber amplifier could
be scaled together with a less infrared absorption loss
of the long wavelength spectral components.
Meanwhile, the output SC source has a good beam
profile.
This SC laser source, to the best of our knowledge, is
the brightest spectrally-flat 2-2.5 μm light source
ever reported. It will be highly desirable in a lot of
long-range atmospheric applications, such as
broad-spectrum LIDAR, free space communication
and hyper-spectral imaging.
Article ID: 70057
Title: Tuneable, Anomalous Mie Scattering Using
Partial Coherence
Name: Yundou Yang Wang
Affiliation: Northwestern Polytechnical University
E-mail: [email protected]
Abstract
In 1908, Gustav Mie [1] obtained, on the basis of
Maxwell's equations, a rigorous solution for the
di raction of a plane monochromatic wave by a
homogeneous sphere of any diameter and of any
com-
position situated in a homogeneous medium. After
that, a large number of studies have been devoted
to the question of how the angular distribution of
elds scattered by a sphere can be controlled. This
line of research was initiated by Kerker et al. in 1983
[2]. They derived conditions under which the
forward or backward scattering by magnetic spheres
is strongly suppressed.
Here we show that a J0 Bessel-correlated beam
which is incident on a homogeneous sphere, pro-
duces a highly unusual distribution of the scattered
eld [3{5]. Such beams can be easily generated
using an incoherent annular source [6]. The forward
scattered intensity can be reduced by more than
ve orders of magnitude compared to the case of an
incident eld that is spatially fully coherent.
Strong suppression can also be obtained for the
backward scattered eld by tuning the spatial co-
herence properties of the incident eld. This method
allows the creation of cone-like scattered elds,
with the angle of maximum intensity given by a
simple formula.
Article ID: 70059
Title: Cycle of phase, coherence and polarization
singularities in Young’s three-pinhole experiment
Name: Xiaoyan Pang
Affiliation: Northwestern Polytechnical University
E-mail: [email protected]
Abstract
The discipline of singular optics, which is concerned
with singularities in the topology of wavefields, has
expanded dramatically over the past decade. It is now
well-established that a variety of singularities can be
30 SOPO 2016 Conference Guide
characterized and observed. It was originally
concerned with singularities in the phase of scalar
wavefields and not long after, singularities of
polarization were also described. In recent years,
even more classes of singularities have been studied.
Singularities of the spectral degree of coherence
(called correlation vortices or coherence vortices)
have been found in partially coherent scalar
wavefields and eta singularities have been introduced
in partially coherent electromagnetic fields. It is also
known that these phase singularities, polarization
singularities and coherence singularities are
physically related, but the exact nature of their
relationship is still somewhat unclear. We show how
a Young-type three-pinhole interference experiment
can be used to create a continuous cycle of
transformations between classes of singularities,
often accompanied by topological reactions in which
different singularities are created and annihilated.
This ar-rangement serves to clarify the relationships
between the different singularity types, and provides
a simple tool for further exploration.
Article ID: 70102
Title: Analysis of optical properties of off-axis
reflective volume holographic grating
Name: zhenmin shen
Affiliation: Laboratory of Laser Engineering and
Technology, Beijing Institute of Space Mecha
E-mail: [email protected]
Abstract
The coupled wave theory for volume holographic
grating with curved interference fringes has been
proposed based on the Kogelnik′s coupled wave
theory with the plane interference fringes. The
formula about the magnitude and directional angle of
grating vector in arbitrary position of volume
holographic grating with curved grating has been
deduced. We found that the wavelength selectivity
and angular selectivity may be different in different
position of volume holographic curved stripe grating
which depend on the angle between the propagation
vector of reference beam and signal beam. The larger
the angle, the greater the angle and wavelength
selectivity, whereas the weaker.
Article ID: 70030
Title: An Implantable, Multi-Functional Neural
Probe based on Printed Microscale
Optoelectronic Devices
Name: Xing Sheng
Affiliation: Tsinghua University
E-mail: [email protected]
Abstract
Understanding neural structures and functions is
important to resolve the mystery of the complex brain.
Compared to conventional electrophysiological
methods, optical methods have many advantages
since light can be used to stimulate and detect
specific neuronal activities by genetic encoding.
Recent progresses in the design of mechanics and
materials have given birth to flexible and stretchable
electronics and photonics, enabling the integration of
rigid inorganic devices with soft, elastic and curved
biological systems. Here we present an implantable
neural sensing system that integrates high
performance, microscale photonic devices including
LEDs and photodetectors. A blue LED serves as a
light source to excite the genetically encoded calcium
indicator (GECI). A photodetector with a specifically
designed band selective optical coating is used to
probe the GECI fluorescent signal with high
sensitivity. A yellow LED allows us to activate the
chloride pump halorhodopsin, which inhibits local
neural activities. These devices are implanted deeply
into the brain, realizing close loop monitoring and
manipulation of neural activity in vivo. Such an
integrated, deeply implanted and microscale
optoelectronic system provides new insights on
interactions between optical and neural systems.
Article ID: 70042
Title: 1310nm source spectral-domain optical
31 SOPO 2016 Conference Guide
co-herence tomography for Chinese cultural
heritage research
Name: Tingting Gang
Affiliation: School of Physics, Northwest
University, Shaanxi Xi’an
E-mail: [email protected]
Abstract
Optical coherence tomography (OCT) technique is a
nondestructive optical detection technology based on
low-coherence interferometer and it has become an
attractive cultural heritage research method. A
1310nm source spectral-domain optical coherence
tomography (SD-OCT) system based on optical fiber
Michelson interferometer and optical spectrum
analyzer is proposed and demon-strated for Chinese
cultural heritage research. The cross-section OCT
images of Chinese pigment samples and jadeite
samples can provide a lot of valuable microstructure
information for the Chi-nese cultural heritage
research and identification works
Article ID: 70105
Title: Bioinspired fabrication of optical fiber SPR
sensors for immunoassays using
polydopamine-accelerated electroless plating
Name: Se Shi
Affiliation: Tianjin University
E-mail: [email protected]
Abstract
Fabrication of optical fiber surface plasmon
resonance (SPR) sensors has always been a
challenge. It requires some complex and special
rotation devices1,2 in the vacuum evaporation or
sputtering systems, ensuring that the deposition of
gold films on the cylindrical optical fiber surface is
as uniform as possible.
Our group is devoted to the study of the fabrication
and functional modification of the optical fiber SPR
sensors based on the chemical metal deposition and
bioinspired adhesion.3,4 In this report, we will focus
on our recent works in the fabrications of SPR
sensors, especially, the facile, rapid and effective
method for the fabrication of optical fiber SPR
sensors via polydopamine (PDA)-accelerated
electroless plating (ELP)5. Bioinspired PDA coating
was utilized as the versatile material for optic-fiber
functionalization and the gold seeds adsorption of
the ELP (Fig. 1). The fabricated sensors exhibited
higher sensitivity, better reproducibility and
adhesion stability compared with those fabricated by
the traditional ELP. Some key experimental
parameters, including DA polymerization
temperature, DA polymerization time, and plating
time, were investigated in detail. The optimized
samples exhibited high sensitivity ranging from
1391 nm/RIU to 5346 nm/RIU in the refractive
index range of 1.328 to 1.386. Scanning electron
microscopy images indicated that the sensor surface
consisted of gold nanoparticles with a uniform
particle size and an orderly arrangement, and the
film thickness was approximately 60 nm. Another
PDA layer was formed on the gold film for the facile
immobilization of antibodies. The sensor exhibited
effective antibody immobilization ability and high
sensitivity for human IgG detection over a wide
range of concentrations from 0.5 to 40 μg/mL,
which indicate the potential applications of
fabricated sensors in immunoassays.
Article ID: 70062
Title: A New Pulse Delta-Sigma CO2 NDIR Gas
De-tector
Name: Chih-Hsiung Shen
Affiliation: National Changhua University of
Education
E-mail: [email protected]
Abstract
This work describes the implementation and the
modeling of a gas sensor with pulse delta-sigma
architecture. Beyond the conventional technique of
constant periodic heating of light source, our
proposed delta-sigma architecture with closed-loop
feedback system is obtained by the hybrid
32 SOPO 2016 Conference Guide
combination of a CO2 infrared sensor prototype
which includes an amplifier, ARM based MPU and
discrete electronic devices. After a modeling of
system, we built a model for the description of
re-lationship between gas concentration and sensor
by the duty of heating. The measurement results
show a good linear behavior of signal and prove to
be practical for all the NDIR measuring tech-niques
and this work also gives a new approach not only to
measure gas concentration fast but also obtain the
high resolution.
Article ID: 70034
Title: Interferometric Profile Measurement
Based on Subtraction and Addition of Optical
Waves
Name: Kuo-Chen Lang
Affiliation: Nan-Kai University of Technology
E-mail: [email protected]
Abstract
An interferometer based on the subtraction and
addition between wave fields is developed for
determining the surface topography. Four
interference fringe images are recorded by the
proposed interferometer under predetermined
polarization states of signal wave and reference wave
so that the subtraction and addition between waves
are realized. The surface profile is then obtained by
unwrapping the phase map which is generated from
the four images. The error introduced by phase shift
error in the phase shifting interferometer, which is
well-known and widely employed, is avoided.
Article ID: 70038
Title: Real Time Interferometric Ellipsometry
Name: Hui-Kang Teng
Affiliation: Nan-Kai University of Technology
E-mail: [email protected]
Abstract
A heterodyne interferometer is presented for
measuring the ellipsometric angles in real time.
These two angles are calculated in terms of two
heterodyne interference signals that determined
accurately by maximum likelihood method. Since the
common path design of the interferometer eliminates
the noises carried by the heterodyne signals, high
accuracy of the measurement is achieved.
Article ID: 70016
Title: mRNA of expression of per 1 in mice bone
marrow mesenchymal stem cells irradiated by
red laser
Name: Peng Fei
Affiliation: Renmin Hospital of Wuhan University
E-mail: [email protected]
Abstract
A core group of circadian genes regulate the
circadian rhythms in mammalian cells. However, the
mammalian cellular circadian rhythm in
photobiomodulation remains unknown. A lot of
evidence has show that >20% of expressed mRNAs
in bone stissues oscillate in a circadian manner. The
aim of this paper is to investigate the mRNA
expression of period 1 (per 1) in murine bone
marrow-derived mesenchymal stem cells (BMSCs)
which were irradiated by 635nm red laser light. The
cells were seeded in 35mm tissue-culture dishes at a
density of 8×104 cells/dish. and cultured in
Dulbecco’s modified Eagle’s medium (DMEM).
BMSCs were irradiated once by 635nm red light with
radiation energies 0J/cm2, 1J/cm2, 4J/cm2. mRNA
expression of per 1 via Semi-Quantitative Real-time
RT-PCR at 0h, 6h, 12h, 18h, 24h. The genes
displayed a oscillatory period of nearly 24 hours.
And 635nm laser light changed the mRNA
expression of per 1. We conclude that red light
irradiation can effect the circadian rhythm of
BMSCs.
Article ID: 70029
Title: The effect of 635nm red laser irradiation
33 SOPO 2016 Conference Guide
on proliferation of bone marrow stem cells
Name: Peng Fei
Affiliation: Renmin Hospital of Wuhan University
E-mail: [email protected]
Abstract
Photobiomodulation effects of low-energy light
irradiation on regeneration have been reported in
skin , nerve, and skeletal muscle tissues and bone.
Bone Mesenchymal stem cells (BMSCs) are de-rived
from bone marrow, which exhibited a fibroblast-like
appearance, and could differentiate in vitro into
different lineages. However, there is a a reciprocal
relationship between growth and os-teogenic
differentiation in MSCs. Therefore, it’s important to
investigate the effect of Low-level light irradiation
(LLLI) on BMSCs. The aim of our study was to
investigate the proliferation effect of 638nm red laser
light on bone marrow MSCs with or without
osteogenic supplements. Bone mar-row was
collected from the 4-week-old Sprague–Dawley rats
femur and tibiae. MSCs with and without osteogenic
supplements both were divided into three groups. A
continuous 635nm wave-length red light diode laser
(a power output of 960mW) was used in the study.
The size of light spot was 35mm in diameter.
Irradiation was performed every other day since the
half of medium was changed to osteogenic
differentiation media (ODM). The first irradiation
day was set as 0 day. The duration of each irradiation
for red light was calculated at 10 seconds for 1 J/cm2,
20 seconds for 2 J/cm2. Two of these groups were
used as controls: MSCs incubated in DMEM without
irradiation (control 1), MSCs incubated in ODM
without irradiation (control 2). Cellular proliferation
was evaluated by using WST-8. Cell viability was
assessed with WST-8 kit at 2, 4, 6 and 8 days,
respec-tively. At 4, 6 and 8 days, groups cultured
with DMEM showed significantly higher viabilities
than that in groups with ODM. In groups with
DMEM, red light at all doses significantly stimulated
cell viability as compared with the control 1. Groups
irradiated at 1 and 2 J/cm2 had more effective
pro-liferation on 4 (P<0.01) and 6 days (P<0.05),
when compared with the control 1. In groups with
ODM, control 2 and the irradiated groups showed
similar proliferation speeds. In conclusion, we can
find that red light can promote proliferation of MSCs
cultured in normal media, and suppress proliferation
of MSCs cultured in ODM.
34 SOPO 2016 Conference Guide
Part VI Instructions for Presentations
Oral Presentation
Devices Provided by the Conference Organizing Committee:
Laptops (with MS-office & Adobe Reader)
Projectors & Screen
Laser Sticks
Materials Provided by the Presenters:
PowerPoint or PDF files
Duration of each Presentation:
Regular Oral Session: 15-20 Minutes of Presentation
Plenary/Invited Speech: 30-40 Minutes of Presentation
Poster Presentation
Materials Provided by the Conference Organizing Committee:
X Racks & Base Fabric Canvases (60cm×160cm, see the figure below)
Adhesive Tapes or Clamps
Materials Provided by the Presenters:
Home-made Posters
Requirement for the Posters:
Material: not limited, can be posted on the Canvases
Size: smaller than 60cm×160cm
Content: for demonstration of the presenter’s paper
35 SOPO 2016 Conference Guide
Part VII Hotel Information
About Hotel
Ramada Xi'an Bell Tower is located in the historic "imperial capital", the hotel unique location, adjacent to Xi'an landmark building - the clock tower. Centrally located downtown commercial area, located in the North Tower Avenue subway station and subway station, east of Shaanxi Provincial People's Government, west of Xi'an Municipal People's Government; around all over the large scale commercial, shopping and financial center. Transportation is very convenient, only 30 minutes from the airport, railway station only 5 minutes. Modern and stylish hotel is the theme of intelligent, digital, information-based multi-functional environmental protection as one of the four-star luxury business conference hotel. It is located on the lobby floor, with a total area of 991 square meters, equipped with front desk, lobby bar, concierge, and public rest areas. Design coherence, the modern West, fashion, pour carefully to take the concept of an international element.
Address: 79, North Street, Xi'an, Shaanxi, China Contact Number: 86-29-87283999 Fax Number: 86-29- 87283888 Webiste: http://www.ramadabelltower.com/en/index.asp
For non-Chinese author, please show the following info to the driver if you take a taxi: 请送我到:中国西安市北大街79号西安华美达兆瑞酒店
37 SOPO 2016 Conference Guide
Contact Us
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