Gain enhancement effect of surface plasmon polaritons on terahertz stimulated emission in optically pumped monolayer graphene

Tetsuya Kawasaki, Takayuki Watanabe, Tetsuya Fukushima, Yuhei Yabe, Stephane Albon Boubanga Tombet, Akira Satou, Alexander A. Dubinov, Vladimir Ya Aleshkin, Vladimir Mitin, Victor Ryzhii, Taiichi Otsuji

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

Abstract

Giant gain enhancement effect of surface plasmon polaritons (SPPs) on terahertz (THz) stimulated emission in optically pumped monolayer graphene has been experimentally studied. We observed the spatial distribution of the THz probe pulse intensities under linear polarization of optical pump and THz probe pulses. It was clearly observed that an intense THz probe pulse was detected only at the area where the incoming TM mode THz probe pulse being capable of exciting the SPPs. The observed gain factor ̃50 is in fair agreement with theoretical calculations.

Original languageEnglish
Title of host publicationCLEO
Subtitle of host publicationScience and Innovations, CLEO_SI 2014
PublisherOptical Society of American (OSA)
ISBN (Print)9781557529992
Publication statusPublished - 2014 Jan 1
EventCLEO: Science and Innovations, CLEO_SI 2014 - San Jose, CA, United States
Duration: 2014 Jun 82014 Jun 13

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701

Other

OtherCLEO: Science and Innovations, CLEO_SI 2014
Country/TerritoryUnited States
CitySan Jose, CA
Period14/6/814/6/13

ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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