Polarization-independent plasmonic absorption in stacked anisotropic 2D material nanostructures

被引：103
|
作者：
Xia, Sheng-Xuan [1 ,2 ]
Zhai, Xiang [1 ,2 ]
Wang, Ling-Ling [1 ,2 ]
Wen, Shuang-Chun [1 ,2 ]
机构：
[1] Hunan Univ, Minist Educ, Key Lab Micro Nano Optoelect Devices, Changsha 410082, Hunan, Peoples R China
[2] Hunan Univ, Hunan Prov Key Lab Low Dimens Struct Phys & Devic, Sch Phys & Elect, Changsha 410082, Hunan, Peoples R China
来源：
OPTICS LETTERS | 2020年 / 45卷 / 01期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
INDUCED TRANSPARENCY; SURFACE-PLASMONS; GRAPHENE;
D O I：
10.1364/OL.45.000093
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Here we study the possibility to achieve polarization-independent optical absorption in stacked anisotropic 2D material nanostructures (NSs). Focusing on black phosphorus, we demonstrate that by crossly stacking even-layered NSs, surface plasmons resonant in the two lattice directions are complementary excited, leading to polarization-independent absorption at any layer distance. This property is numerically validated using full electromagnetic simulations and theoretically predicted by a two-particle model. Our proposal can open up the possibility of anisotropic 2D materials to develop polarization-independent plasmon devices such as sensors and absorbers. (C) 2019 Optical Society of America
引用
收藏
页码：93 / 96
页数：4
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