Low frequency transverse electric surface plasmon polaritons in a dielectric-graphene-dielectric structure

被引：6
|
作者：
Yang, Cuihong [1 ,2 ]
Liu, Zhen [1 ,2 ]
Shi, Wei [3 ]
Zhang, Chao [4 ]
机构：
[1] Nanjing Univ Informat Sci & Technol, Jiangsu Key Lab Optoelect Detect Atmosphere & Oce, Nanjing 210044, Jiangsu, Peoples R China
[2] Nanjing Univ Informat Sci & Technol, Sch Phys & Optoelect Engn, Nanjing 210044, Jiangsu, Peoples R China
[3] Xian Univ Technol, Sch Appl Phys, Xian, Shaanxi, Peoples R China
[4] Univ Wollongong, Sch Phys, Wollongong, NSW 2552, Australia
来源：
APPLIED PHYSICS EXPRESS | 2019年 / 12卷 / 08期
基金：
美国国家科学基金会;
关键词：
Photons - Surface plasmon resonance - Graphene - Electromagnetic wave polarization;
D O I：
10.7567/1882-0786/ab2f95
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Surface plasmon polariton (SPP) can be applied in light emission, sensing and imaging. In this work, by using a structure in which graphene is sandwiched between two dielectric mediums, we demonstrate a nonlinear response mechanism for generating low frequency transverse electric (TE) SPP in the terahertz (THz)/sub-THz regime. Furthermore, unlike any other known SPPs located outside the light cone, a significant part of the nonlinear low frequency TE SPP mode revealed here falls in the light cone. Therefore, it is possible to couple the SPP directly with light without structural modifications, making it a possible radiation source in low frequencies. (C) 2019 The Japan Society of Applied Physics
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页数：4
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