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 publicationLasers and Electro-Optics/Quantum Electronics and Laser Science Conference
Subtitle of host publication2010 Laser Science to Photonic Applications, CLEO/QELS 2010
Publication statusPublished - 2010 Oct 11
EventLasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010 - San Jose, CA, United States
Duration: 2010 May 162010 May 21

Publication series

NameLasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010

Other

OtherLasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010
CountryUnited States
CitySan Jose, CA
Period10/5/1610/5/21

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Radiation

Fingerprint Dive into the research topics of 'Observation of amplified stimulated terahertz emission in optically pumped epitaxial graphene heterostructures'. Together they form a unique fingerprint.

  • Cite this

    Karasawa, H., Watanabe, T., Otsuji, T., Ryzhii, M., Satou, A., & Ryzhii, V. (2010). Observation of amplified stimulated terahertz emission in optically pumped epitaxial graphene heterostructures. In Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010 [5500881] (Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010).