Dynamically tunable interface states in 1D graphene-embedded photonic crystal heterostructure

被引：4

作者：

Huang, Zhao ^{[1
,2
]}

Li, Shuaifeng ^{[1
,2
]}

Liu, Xin ^{[1
,2
]}

Zhao, Degang ^{[3
]}

Ye, Lei ^{[1
,2
]}

Zhu, Xuefeng ^{[2
,3
]}

Zang, Jianfeng ^{[1
,2
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Hubei, Peoples R China

[2] Huazhong Univ Sci & Technol, Innovat Inst, Wuhan 430074, Hubei, Peoples R China

[3] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Hubei, Peoples R China

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2018年 / 30卷 / 09期

基金：

中国国家自然科学基金;

关键词：

photonic crystal; graphene; interface state; dynamical tunability; SURFACE-PLASMONS; WAVE; ENHANCEMENT; PHASE;

D O I：

10.1088/1361-648X/aaa942

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Optical interface states exhibit promising applications in nonlinear photonics, low-threshold lasing, and surface-wave assisted sensing. However, the further application of interface states in configurable optics is hindered by their limited tunability. Here, we demonstrate a new approach to generate dynamically tunable and angle-resolved interface states using graphene-embedded photonic crystal (GPC) heterostructure device. By combining the GPC structure design with in situ electric doping of graphene, a continuously tunable interface state can be obtained and its tuning range is as wide as the full bandgap. Moreover, the exhibited tunable interface states offer a possibility to study the correspondence between space and time characteristics of light, which is beyond normal incident conditions. Our strategy provides a new way to design configurable devices with tunable optical states for various advanced optical applications such as beam splitter and dynamically tunable laser.

引用

页数：6

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