Energy backflow in tightly focused cylindrical vector beam with fractional order

Vladislav D. Zaitcev; Sergey S. Stafeev; Victor V. Kotlyar

doi:10.1117/12.2589057

18 April 2021 Energy backflow in tightly focused cylindrical vector beam with fractional order

Vladislav D. Zaitcev, Sergey S. Stafeev, Victor V. Kotlyar

Proceedings Volume 11775, Integrated Optics: Design, Devices, Systems and Applications VI; 117751B (2021) https://doi.org/10.1117/12.2589057
Event: SPIE Optics + Optoelectronics, 2021, Online Only

Conference Poster

Abstract

By simulating tight focusing of vector beams with azimuthal polarization of fractional order, the effect of the deviation of the beam order from m = 2 (i.e., the case when the backflow is observed at the center of the focal spot) was investigated. It was shown that the reverse flow is retained in the center of the spot even with a significant deviation of the beam order from m = 2 - it is retained up to m = 1.55.

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Vladislav D. Zaitcev, Sergey S. Stafeev, and Victor V. Kotlyar "Energy backflow in tightly focused cylindrical vector beam with fractional order", Proc. SPIE 11775, Integrated Optics: Design, Devices, Systems and Applications VI, 117751B (18 April 2021); https://doi.org/10.1117/12.2589057

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