Features of a Gaussian beam near-field diffraction upon variations in the relief height of subwavelength silicon optical elements

Features of the near-field diffraction of Gaussian beams and Laguerre-Gauss modes by silicon subwavelength optical elements with varying relief height were studied in this paper using a finite-difference time-domain method. Diffractive axicons and subwavelength ring gratings were considered as the o...

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Bibliographic Details

Published in:	Компьютерная оптика
Main Author:	D.A. Savelyev
Format:	Article
Language:	English
Published:	Samara National Research University 2023-12-01
Subjects:	gaussian beams optical vortices silicon ring gratings diffractive axicon sharp focusing optical trap fdtd
Online Access:	https://www.computeroptics.ru/eng/KO/Annot/KO47-6/470611e.html