polarization characteristics of multiple scattering of light by nonspherical particles and...
TRANSCRIPT
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POLARIZATION CHARACTERISTICS OF
MULTIPLE SCATTERING OF LIGHT BY NONSPHERICAL
PARTICLES AND AGGREGATES OF
SPHERICAL PARTICLES IN TURBID MEDIA
Alexander A. Skaptsov, Saratov State Universaty,
Russia
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CONTENTS
The Monte Carlo basis
The Monte Carlo extension
Helper methods Useability
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The Monte Carlo basis
Boundary condition
Light sources
Detector
Scattering or Absorption&
Boundary conditionDetect
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The Monte Carlo basis
• Free path length
What is? In the first approximation
• Phase function by Henyey–Greenstein
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The Monte Carlo extension
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The Monte Carlo extension
• Free path length
In the first approximation
• Phase function by Henyey–Greenstein
In the second approximation
• Interaction probability between i-scatterer & light
by exact theory of light scattering
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The Monte Carlo extensionPOLARIZATION OF THE PHOTON
• Stokes vector • Mueller matrix
CONNECTION OF SCATTERED AND INCIDENT LIGHT
• Scattering light • Incident light
• Phase function
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Helper methodsEXACT THEORY OF LIGHT SCATTERING
Single scattering Scattering by ensemble of scatterers
• Rayleigh-Gans theory
• Lorenz-Mie theory
• Method of variables separation (S. Asano, G. Yamamoto)
• Extended boundary condition method (Р.С. Waterman)
• Extended boundary condition method (Р.С. Waterman)
• Discrete dipole approximation
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Helper methodsEXTENDED BOUNDARY CONDITION METHOD
Maxwell's equations
Fundamental system of solutions
Expansion of fields Relation of coefficients
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USEABILITYDISTRIBUTION OF ABSORBED RADIATION
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USEABILITYOPTICAL COHERENT TOMOGRAPHY
Software Experiments
All experiments have been done by G.G. Akchurin, B.N. Khlebtsov, N.G. Khlebtsov.
OCT imaging of 1mm cuvet with gold nanoparticles of different concentrations.
Results of the software for OCT imaging of 1mm cuvet with gold nanoparticles for same concentrations.
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Thank you for your attention