Coupled-mode theory and Fano resonances in guided-mode resonant gratings: the conical diffraction mounting

被引：15
|
作者：
Bykov, Dmitry A. [1 ]
Doskolovich, Leonid L.
Soifer, Victor A.
机构：
[1] Russian Acad Sci, Image Proc Syst Inst, Branch Fed Sci Res Ctr Crystallog & Photon, 151 Molodogvardeyskaya St, Samara 443001, Russia
来源：
OPTICS EXPRESS | 2017年 / 25卷 / 02期
基金：
俄罗斯科学基金会; 俄罗斯基础研究基金会;
关键词：
EXTRAORDINARY OPTICAL-TRANSMISSION; FILTERS; POLES;
D O I：
10.1364/OE.25.001151
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study resonances of guided-mode resonant gratings in conical mounting. By developing 2D time-dependent coupled-mode theory we obtain simple approximations of the transmission and reflection coefficients. Being functions of the incident light's frequency and in-plane wave vector components, the obtained approximations can be considered asmulti-variable generalizations of the Fano line shape. We show that the approximations are in good agreement with the rigorously calculated transmission and reflection spectra. We use the developed theory to investigate angular tolerances of the considered structures and to obtain mode excitation conditions. In particular, we obtain the cross-polarization mode excitation conditions in the case of conical mounting. (C) 2017 Optical Society of America
引用
收藏
页码：1151 / 1164
页数：14
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