Room-temperature zero-bias plasmonic THz detection by asymmetric dual-grating-gate HEMT

T. Watanabe, T. Kawasaki, A. Satou, Stephane Albon Boubanga Tombet, T. Suemitsu, G. Ducournau, D. Coquillat, W. Knap, H. Minamide, H. Ito, V. V. Popov, Y. M. Meziani, T. Otsuji

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


We study theoretically and experimentally the plasmonic THz detection by the asymmetric dual-grating-gate HEMT at room temperature without source-to-drain bias. We derive the analytical expressions of photocurrents due to the plasmonic drag and ratchet effects, and we discuss about their frequency dependences. We also compare the theory to the experimentally obtained frequency dependence. It is demonstrated that they agree qualitatively well.

Original languageEnglish
Article number93620F
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue numberJanuary
Publication statusPublished - 2015
Event2015 Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VIII Conference - San Francisco, United States
Duration: 2015 Feb 102015 Feb 12


  • Asymmetric dual-grating-gate HEMT
  • Plasmon
  • THz detection

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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