Numerical investigation of laser light scattering by dielectric microtoroids

Yury E. Geints; Ekaterina K. Panina; Alexander A. Zemlyanov; Inna I. Apeximova

doi:10.1117/12.2572642

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12 November 2020 Numerical investigation of laser light scattering by dielectric microtoroids

Yury E. Geints, Ekaterina K. Panina, Alexander A. Zemlyanov, Inna I. Apeximova

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Proceedings Volume 11560, 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 115600P (2020) https://doi.org/10.1117/12.2572642
Event: 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2020, Moscow, Russian Federation

Abstract

We report the study of “photonic nanojet” (PNJ) formed by laser radiation scattering on single-layer ordered assembly of dielectric microtoroids placed on the silicone film surface. By means of the FDTD - method, the parameters of PNJ (length, width, intensity) are calculated. It has been shown that the main factor influencing the studied characteristics of PNJ is the spatial configuration of the particle scattering radiation, namely, the diameter of its internal section. It has been established that for certain configurations of the placement of toroids in the cluster, the PNJ ensemble is implemented with parameters significantly better than for a single toroid.

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Yury E. Geints, Ekaterina K. Panina, Alexander A. Zemlyanov, and Inna I. Apeximova "Numerical investigation of laser light scattering by dielectric microtoroids", Proc. SPIE 11560, 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 115600P (12 November 2020); https://doi.org/10.1117/12.2572642

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