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Jing He

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Proceedings Article | 13 December 2024 Paper

Polarization retention characteristics of linearly polarized light through concentric spherical particles on forward transmission

Jing He, Yi Duan, Dong Wang, Xiaoqian Li, Gang Li, Xiangwei Zeng

Proceedings Volume 13504, 1350402 (2024) https://doi.org/10.1117/12.3045467

KEYWORDS: Silica, Polarization, Optical spheres, Particles, Water, Spherical lenses, Refractive index, Polarized light, Light scattering, Mie scattering

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This study examines the polarization retention of linearly polarized light during forward transmission through concentric spherical microparticles. By using silica-encapsulated water and oil-encapsulated water-encapsulated silica as examples, the study explores the effects of wavelength, particle size, refractive index variations, different distributions, and double/triple-layered spheres on polarization retention in forward transmission. The research identifies polarization-preserving channels at specific wavelengths. Polarization retention characteristics vary with particle size. For silica-encapsulated water spheres with radii of 1μm, 2μm, 5μm, 10μm, and 20μm, distinct intervals exhibit rapid declines in polarization retention. In contrast, silica-encapsulated water spheres with radii of 0.2μm and 0.5μm show no intervals of rapid polarization retention decline. Each silica-encapsulated water sphere exhibits a unique depolarization interval under varying refractive index conditions. As the forward transmission angle increases under different distributions, superior polarization retention characteristics shift from monodisperse to normal and log-normal distributions. For double-layered and triple-layered concentric spherical microparticles, both silicaencapsulated water and oil-encapsulated water-encapsulated silica exhibit distinct depolarization intervals.

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