THz Aperture Near-Field Spectroscopy of Dirac Plasmons in Topological Insulator Bi2Se3

被引：0

作者：

Hale, Lucy L. ^{[1
]}

Wang, Zentianye ^{[2
]}

Law, Stephanie ^{[2
]}

Brener, Igal ^{[3
,4
]}

Mitrofanov, Oleg ^{[1
]}

机构：

[1] UCL, Elect & Elect Engn, London WC1E 7JE, England

[2] Univ Delaware, Dept Mat Sci & Engn, Newark, DE 19716 USA

[3] Sandia Natl Labs, Ctr Integrated Nanotechnol, Albuquerque, NM 87123 USA

[4] Sandia Natl Labs, Albuquerque, NM 87123 USA

来源：

2022 47TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ 2022) | 2022年

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1109/IRMMW-THz50927.2022.9895794

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We map the dispersion relation in ribbon gratings of topological insulator Bi2Se3 using both far-field and aperture-type near-field THz spectroscopy methods. The results are consistent with theoretical predictions of coupling between the optical phonon and massless Dirac plasmons.

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页数：2

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