Topological super-modes engineering with acoustic graphene plasmons

被引：1

作者：

Fan, Jiang ^{[1
,2
]}

Sun, Zhiguo ^{[1
,2
]}

Lu, Yao ^{[1
,2
]}

Luo, Weiwei ^{[1
,2
]}

Ren, Mengxin ^{[1
,2
]}

Cai, Wei ^{[1
,2
]}

Xu, Jingjun ^{[1
,2
]}

机构：

[1] Nankai Univ, Sch Phys, Key Lab Weak Light Nonlinear Photon, Minist Educ, Tianjin 300457, Peoples R China

[2] Nankai Univ, TEDA Appl Phys Inst, Tianjin 300457, Peoples R China

来源：

OPTICS EXPRESS | 2023年 / 31卷 / 03期

基金：

中国国家自然科学基金;

关键词：

STATES; PHASE;

D O I：

10.1364/OE.480044

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Acoustic graphene plasmons (AGPs) in a graphene-dielectric-metal structure possess extreme field localization and low loss, which have promising applications in strong photon-matter interaction and integrated photonic devices. Here, we propose two kinds of one-dimensional crystals supporting propagating AGPs with different topological properties, which is confirmed by the Zak phase calculations and the electric field symmetry analysis. Moreover, by combining these two plasmonic crystals to form a superlattice system, the super-modes exist because of the coupling between isolated topological interface states. A flat-like dispersion of super-modes is observed by designing the superlattice. These results should find applications in optical sensing and integrating photonic devices with plasmonic crystals.(c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：3698 / 3707

页数：10