Polarization Characteristics of the Coherent Backscattering Peak for Large Nonspherical Particles with Random Orientation in Space

Polarization elements of the light scattering matrix in the vicinity of the backscattering direction of a perfect hexagonal column and a particle of a random convex polyhedral shape are studied within the physical optics approximation. The study is carried out for particles with a size of 10–100 µm...

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Bibliographic Details
Published in:Atmospheric and oceanic optics 2023-06, Vol.36 (3), p.244-255
Main Authors: Konoshonkin, A. V., Kustova, N. V., Shishko, V. A., Timofeev, D. N., Kan, N., Tkachev, I. V., Salnikov, K. S., Borovoi, A. G.
Format: Article
Language:English
Subjects:
Approximation
Backscatter
Backscattering
Cirrus clouds
Lasers
Lidar
Light scattering
Optical Devices
Optical Models and Databases
Optics
Particle shape
Photonics
Physical optics
Physics
Physics and Astronomy
Polarization
Polarization characteristics
S matrix theory
Shape
Wavelength
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Summary:Polarization elements of the light scattering matrix in the vicinity of the backscattering direction of a perfect hexagonal column and a particle of a random convex polyhedral shape are studied within the physical optics approximation. The study is carried out for particles with a size of 10–100 µm for a wavelength of 0.532 µm. It is shown that, within the vicinity of the coherent backscattering peak, polarization elements of the matrix have significant local extrema. At the same time, their angular width is essentially independent of the particle shape but significantly depends on the size. The results obtained are of interest for the interpretation of lidar measurements in cirrus clouds.
ISSN:1024-8560
2070-0393
DOI:10.1134/S1024856023030156