Structural surface wave properties of amorphous Bi2Te3 by pulsed laser deposition in the visible and near-infrared regions

被引:7
作者
Chai, Zhen [1 ,2 ]
Hu, Xiaoyong [1 ,2 ,3 ]
Zhao, Yifan [1 ,2 ,5 ]
Wu, You [1 ,2 ]
Wang, Shufang [4 ]
Yang, Hong [1 ,2 ,3 ]
Gong, Qihuang [1 ,2 ,3 ]
机构
[1] Peking Univ, Collaborat Innovat Ctr Quantum Matter, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China
[2] Peking Univ, Collaborat Innovat Ctr Quantum Matter, Dept Phys, Beijing 100871, Peoples R China
[3] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China
[4] Hebei Univ, Coll Phys Sci & Technol, Baoding 071002, Hebei, Peoples R China
[5] Univ Calif Los Angeles, Elect Engn Dept, 420 Westwood Plaza, Los Angeles, CA 90095 USA
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
PLASMONS;
D O I
10.1063/1.5031219
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Owing to the unique properties of evanescent fields, surface waves show great applications in near field enhancement and in breaking the resolution limit. In this work, we found the amorphous-state Bi2Te3 film deposited by pulsed laser deposition exhibits surface wave properties in an ultrawide waveband ranging from the visible to near-infrared regions. We analyze the surface wave in three ways: the propagation form, localized form, and coupling with a gold nanobar. This work not only breaks the strict limit of a Bi2Te3 topological crystalline insulator but also widens the wavelength region of surface waves compared with a previous report. (C) 2018 Author(s).
引用
收藏
页数:8
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