svl short course module 1 -- introductionemlab.utep.edu/scsvl/svl short course module 1 --...
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Pioneering 21st Century Electromagnetics and Photonics
Module 1 –Introduction
Course Website:http://emlab.utep.edu/scSVL.htm
EM Lab Website:http://emlab.utep.edu/
Short CourseShort Course Outline
• Module 1 – Introduction– What is a spatially-variant lattice?
– Why is it good?
• Module 2 – Spatially-Variant Planar Gratings
• Module 3 – Spatially-Variant Lattices
• Module 4 – MATLAB to CAD
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Spatially-Variant Lattices
Short Course
Classes of Periodic Structures
http://emlab.utep.edu
Flat Volumetric
Siz
e <
<
Siz
e ~
Metasurfaces
Frequency Selective Surfaces
Metamaterials
Photonic Crystals
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Electromagnetic fields and waves cannot be controlled using homogeneous materials.
There must exist some kind of inhomogeneity.
If we use metamaterials, metasurfaces, and photonic crystals as artificial materials, why are so many lattices
macroscopically homogeneous?
Because it is not well known how to make them inhomogeneous without destroying their properties.
Imagine what we are missing!
Short Course
Spatially Variant Lattices
SVL Short Course -- Module 1
Raymond C. Rumpf "Engineering the Dispersion and Anisotropy of Periodic Electromagnetic Structures," Solid State Physics, Vol. 66, pp. 213-300, 2015.
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Short Course
Spatially Variant Lattices
SVL Short Course -- Module 1
Raymond C. Rumpf "Engineering the Dispersion and Anisotropy of Periodic Electromagnetic Structures," Solid State Physics, Vol. 66, pp. 213-300, 2015.
4/7/2016 Slide 7
Short Course
Spatially Variant Lattices
SVL Short Course -- Module 1
Raymond C. Rumpf "Engineering the Dispersion and Anisotropy of Periodic Electromagnetic Structures," Solid State Physics, Vol. 66, pp. 213-300, 2015.
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Short Course
What Can Be Spatially Varied?
SVL Short Course -- Module 14/7/2016 Slide 9
Short Course
What Can Be Spatially Varied?
SVL Short Course -- Module 14/7/2016 Slide 10
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Short Course
What Can Be Spatially Varied?
SVL Short Course -- Module 14/7/2016 Slide 11
Short Course
What Can Be Spatially Varied?
SVL Short Course -- Module 14/7/2016 Slide 12
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Short Course
What Can Be Spatially Varied?
SVL Short Course -- Module 14/7/2016 Slide 13
Short Course
Arrays on Curved Surfaces
SVL Short Course -- Module 1
perspective view
top view
R. C. Rumpf, et al "Spatially-Variant Periodic Structures in Electromagnetics," Phil. Trans. R. Soc. A 373, 2014.0359, July 2015.
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Periodic structures can be placed onto curved surfaces without deforming the elements or their spacing.
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Short Course
Arrays of Discontinuous Metallic Elements
SVL Short Course -- Module 1
+ =
R. C. Rumpf, et al "Spatially-Variant Periodic Structures in Electromagnetics," Phil. Trans. R. Soc. A 373, 2014.0359, July 2015.
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Achievements Using Spatially-
Variant Structures
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Short Course
Polarization Control Using Spatially-Variant Form Birefringence
4/7/2016 SVL Short Course -- Module 1 Slide 17
A. Mehta, J. D. Brown, P. Srinivasan, R. C. Rumpf, E. G. Johnson, “Spatially polarizing autocloned elements,” Opt. Lett. 32, 1935–1937 (2007) .
Short Course
Compensation for Surface Curvature
SVL Short Course -- Module 1
R. C. Rumpf, M. Gates, C. L. Kozikowski, W. A. Davis, "Guided-Mode Resonance Filter Compensated to Operate on a Curved Surface," PIER C, Vol. 40, pp. 93-103, 2013.
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Short Course
Spatially-Variant Self-Collimation
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unit cell orientation (degrees)
~20 dB
• Manufactured by 3D printing• Operated at 15 GHz
R. C. Rumpf, J. Pazos, C. R. Garcia, L. Ochoa, and R. Wicker, "3D Printed Lattices with Spatially Variant Self-Collimation," PIER, Vol. 139, pp. 1-14, 2013.
Short Course
World’s Tightest Unguided Bend
http://emlab.utep.edu
30 m• Bend radius was 6.70.
• Low refractive index(SU-8, n 1.59).
• Operated at 0 = 2.94 m.
• Recently demonstrated 0 = 1.55 m
J. L. Digaum, J. J. Pazos, J. Chiles, J. D'Archangel, G. Padilla, A. Tatulian, R. C. Rumpf, S. Fathpour, G. D. Boreman, and S. M. Kuebler, "Tight Control of Light Beams in Photonic Crystals with Spatially-Variant Lattice Orientation," Optics Express, Vol. 22, Issue 21, pp. 25788-25804, 2014.
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Short Course
Zero Mode Coupling in MM Waveguides with Sharp Bends
SVL Short Course -- Module 1
First-Order Mode Third-Order ModeSecond-Order Mode
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R. C. Rumpf, et al, “Spatially-variant periodic structures in electromagnetics,” accepted for publication in Phil. Trans. A, Dec. 2014.
Short Course
Optical High-Speed Interconnects
http://emlab.utep.edu
SVPC Jumper
Circuit Board
BGA w VCSELs
SVPC Funnel
Sharp Waveguide Bends
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Short Course
Microstrip Made Immune to Metal Object in Close Proximity
SVL Short Course -- Module 1
R. C. Rumpf, C. R. Garcia, H. H. Tsang, J. E. Padilla, M. D. Irwin, "Electromagnetic Isolation of a Microstripby Embedding in a Spatially Variant Anisotropic Metamaterial," PIER, Vol. 142, pp. 243-260, 2013.
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Patent Pending
Short Course
Two Antennas Decoupled in 3D Printed Mobile Phone
SVL Short Course -- Module 1
Patent Pending
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Short Course
Combining Spatial Transforms with Synthesis Tool (1 of 2)
SVL Short Course -- Module 1
Step 1 of 4:Define Spatial Transform C
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R. C. Rumpf, et al, “Spatially-variant periodic structures in electromagnetics,” accepted for publication in Phil. Trans. A, Dec. 2014.