Angular control of anisotropy-induced bound states in the continuum

被引：19
|
作者：
Mukherjee, Samyobrata [1 ]
Gomis-Bresco, Jordi [1 ]
Pujol-Closa, Pilar [1 ]
Artigas, David [1 ,2 ]
Torner, Lluis [1 ,2 ]
机构：
[1] Barcelona Inst Sci & Technol, ICFO Inst Ciencies Foton, Castelldefels 08860, Barcelona, Spain
[2] Univ Politecn Cataluna, Dept Signal Theory & Commun, ES-08034 Barcelona, Spain
来源：
OPTICS LETTERS | 2019年 / 44卷 / 21期
基金：
欧盟地平线“2020”;
关键词：
SPIN FILTER; MODES; SLAB; LIGHT;
D O I：
10.1364/OL.44.005362
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Radiation of leaky modes existing in anisotropic waveguides can be cancelled by destructive interference at special propagation directions relative to the optical axis orientation, resulting in fully bound states surrounded by radiative modes. Here we study the variation of the loci of such special directions in terms of the waveguide constitutive parameters. We show that the angular loci of the bound states are sensitive to several design parameters, allowing bound states to exist for a broad range of angular directions and wavelengths and suggesting applications in filtering and sensing. (C) 2019 Optical Society of America
引用
收藏
页码：5362 / 5365
页数：4
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