Critical coupling of surface plasmons in graphene attenuated total reflection geometry

被引：9
|
作者：
Cuevas, Mauro [1 ,2 ,3 ,4 ]
机构：
[1] Univ Belgrano, Consejo Nacl Invest Cient & Tecn CONICET, Villanueva 1324,C1426BMJ, Buenos Aires, DF, Argentina
[2] Univ Belgrano, Fac Ingn & Tecnol Informat, Villanueva 1324,C1426BMJ, Buenos Aires, DF, Argentina
[3] Univ Buenos Aires, FCEN, Dept Fis, Grp Electromagnetismo Aplicado, Ciudad Univ,Pabellon 1,C1428EHA, Buenos Aires, DF, Argentina
[4] IFIBA, Ciudad Univ,Pabellon 1,C1428EHA, Buenos Aires, DF, Argentina
来源：
PHYSICS LETTERS A | 2016年 / 380卷 / 47期
关键词：
Surface plasmon; Graphene; Attenuated total reflection;
D O I：
10.1016/j.physleta.2016.10.020
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the optical response of an attenuated total reflection (ATR) structure in Otto configuration with graphene sheet, paying especial attention to the occurrence of total absorption. Our results show that due to excitation of surface plasmons on the graphene sheet, two different conditions of total absorption may occur. At these conditions, the energy loss of the surface plasmon by radiation is equal to its energy loss by absorption into the graphene sheet. We give necessary conditions on ATR parameters for the existence of total absorption. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：4027 / 4031
页数：5
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