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: Contribution to conferencePaperpeer-review

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
Publication statusPublished - 2014 Jan 1
Event2014 Conference on Lasers and Electro-Optics, CLEO 2014 - San Jose, United States
Duration: 2014 Jun 82014 Jun 13

Other

Other2014 Conference on Lasers and Electro-Optics, CLEO 2014
CountryUnited States
CitySan Jose
Period14/6/814/6/13

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials

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