THz-emission probe of surface-electronic transitions in a topological insulator

Li Guo Zhu, Brian Kubera, Kin Fai Mak, Jie Shan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Upon femtosecond laser pumping of a topological insulator Bi2Se3, we observed efficient THz generation from the surface electrons. By performing polarization-resolved studies on the emitted THz spectrum, two emission mechanisms are identified. THz emission spectroscopy provides a valuable spectroscopic tool for studies of the dynamics of the surface electrons in centrosymmetric topological insulators.

Original languageEnglish (US)
Title of host publication2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013
DOIs
StatePublished - Dec 1 2013
Event2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013 - Mainz, Germany
Duration: Sep 1 2013Sep 6 2013

Other

Other2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013
CountryGermany
CityMainz
Period9/1/139/6/13

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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