Negative polarization phenomenon for large randomly oriented particles of irregular shapes

Natalia V. Kustova; Alexander V. Konoshonkin; Victor A. Shishko; Dmitriy N. Timofeev; Vasiliy A. Slesarev; Anatoli G. Borovoi

doi:10.1117/12.2644084

7 December 2022 Negative polarization phenomenon for large randomly oriented particles of irregular shapes

Natalia V. Kustova, Alexander V. Konoshonkin, Victor A. Shishko, Dmitriy N. Timofeev, Vasiliy A. Slesarev, Anatoli G. Borovoi

Author Affiliations +

Proceedings Volume 12341, 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 123412C (2022) https://doi.org/10.1117/12.2644084
Event: 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2022, Tomsk, Russia

Abstract

The paper presents the phenomenon of negative polarization for large randomly oriented irregular particles what occurs as a result of interference between specific reflected waves associated with geometric optical trajectories of light beams for four refraction/reflection events. All calculations were performed for randomly oriented particles with a convex irregular shape. We used our physical optics approximation computer algorithm where the light scattered inside the particle consists of many plane-parallel beams. It is shown that the appearance of a backscattering peak is characteristic of the trajectories of light beams with any number of refraction/reflection events; however, only trajectories with four events (two internal reflections and two refractions at the exit faces of the particle) create negative polarization.

Citation Download Citation

Natalia V. Kustova, Alexander V. Konoshonkin, Victor A. Shishko, Dmitriy N. Timofeev, Vasiliy A. Slesarev, and Anatoli G. Borovoi "Negative polarization phenomenon for large randomly oriented particles of irregular shapes", Proc. SPIE 12341, 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 123412C (7 December 2022); https://doi.org/10.1117/12.2644084

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