Observation of amplified stimulated terahertz emission in optically pumped epitaxial graphene heterostructures

Hiromi Karasawa, Takayuki Watanabe, Taiichi Otsuji, Maxim Ryzhii, Akira Satou, Victor Ryzhii

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

Abstract

We experimentally observed the fast relaxation and relatively slow recombination dynamics of photogenerated electrons/holes in an epitaxial graphene-on-Si heterostructure. The result is interpreted as an amplified stimulated THz emission and well supports the occurrence of negative dynamic conductivity in the terahertz spectral ranges.

Original languageEnglish
Title of host publicationConference on Lasers and Electro-Optics, CLEO 2010
PublisherOptical Society of America (OSA)
ISBN (Print)9781557528896
DOIs
Publication statusPublished - 2010
EventConference on Lasers and Electro-Optics, CLEO 2010 - San Jose, CA, United States
Duration: 2010 May 162010 May 21

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701

Other

OtherConference on Lasers and Electro-Optics, CLEO 2010
CountryUnited States
CitySan Jose, CA
Period10/5/1610/5/21

ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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