Visible Range Plasmonic Modes on Topological Insulator Nanostructures
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- 作者：Alexander M. Dubrovkin ; Giorgio Adamo ; Jun Yin ; Lan Wang ; Cesare Soci ; Qi Jie Wang and Nikolay I. Zheludev
- 刊名：Advanced Optical Materials
- 出版年：2017
- 出版时间：February 2, 2017
- 年：2017
- 卷：5
- 期：3
- 全文大小：1284K
- ISSN：2195-1071
文摘
Phase-resolved real-space imaging of localized plasmons in Bi1.5Sb0.5Te1.8Se1.2 topological insulator nanostructures is performed by scattering-type scanning near-field optical microscopy. Dipolar and higher order surface plasmon modes with well-defined field amplitude and phase profiles are detected in the visible part of the spectrum.