Generation and focusing of a second-order vector beam using a subwavelength optical element

Autor:	S.A. Degtyarev, D.A. Savelyev
Jazyk:	English<br />Russian
Rok vydání:	2022
Předmět:	subwavelength axicons vector cylindrical beams finite element method backflow comsol multiphysics Information theory Q350-390 Optics. Light QC350-467
Zdroj:	Компьютерная оптика, Vol 46, Iss 1, Pp 39-47 (2022)
Druh dokumentu:	article
ISSN:	2412-6179 0134-2452
DOI:	10.18287/2412-6179-CO-1053
Popis:	This article proposes a new type of subwavelength axicons for creating and focusing second-order vector cylindrical beams. It is also shown that using the proposed subwavelength axicons, it is possible to create focal spots with an energy backflow. The Comsol Multiphysics software is used to simulate the operation of subwavelength axicons with different twist angles. The dependence of the obtained intensity distributions on the angle of twist of the axicon spiral is investigated.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/a8f19120f0ac4cea862c52aacd6b0cf3 Zobrazit plný text záznamu View record in DOAJ