Asymptotic methods of solving problems of diffraction by non-periodic structures

被引：5
作者：
Kharitonov S.I. [1 ,2 ]
Doskolovich L.L. [1 ,2 ]
Kazanskiy N.L. [1 ]
机构：
[1] Image Processing Systems Institute of RAS-Branch of the FSRC “Crystallography and Photonics” RAS, Samara
[2] Samara National Research University, Samara
来源：
Computer Optics | 2017年 / 41卷 / 02期
基金：
俄罗斯科学基金会;
关键词：
Aperiodic structure; Asymptotic method; Coupled-wave analysis; Diffractive optical element (DOE); Microrelief; Quasi-periodic structure;
D O I：
10.18287/2412-6179-2017-41-2-160-168
中图分类号：
学科分类号：
摘要：
An asymptotic method for calculating the complex amplitude of a light field in the case of diffraction by non-periodic band gap structures. The novelty of the approach consists in the expansion of the solution of the integral equation into a basis that describes the propagation of light through a DOE within the geometrical optics approximation and changes into a basis of plane waves used in the calculation of diffraction gratings. We present the results of focusing into a point by a gradient-index diffractive optical element with a band-gap structure. Simulation results confirm the efficiency of the proposed method. © 2017, Institution of Russian Academy of Sciences. All rights reserved.
引用
收藏
页码：160 / 168
页数：8
相关论文
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