Institute of Functional Nano&Soft Materials(FUNSOM);
Jiangsu Key Laboratory for Carbon-Based Functional Materials&Devices;
Soochow University;
199 Ren-ai Road;
Suzhou 215123;
Jiangsu;
China;
Shenyang National Laboratory for Materials Science;
Institute of Metal Research;
Chinese Academy of Sciences;
72 Wenhua Road;
Shenyang 110016;
China;
Department of Electrical and Computer Engineering;
National University of Singapore;
4 Engineering Drive 3;
Singapore 117583;
Singapore;
Department of Materials Science and Engineering;
Monash University;
Clayton;
Victoria 3800;
Australia;
edge chirality; graphene; graphene plasmon; nanoribbon; nanogap; near-field microscopy; s-SNOM;