Analytical and computer models of terahertz HEMT-photomixer

Victor Ryzhii, Akira Satou, Irina Khmyrova, Maxim Ryzhii, Taiichi Otsuji, Michael Shur

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


We develop device models of a terahertz (THz) photomixer based on a high-electron mobility transistor (HEMT) structure utilizing the excitation of electron plasma oscillations in the HEMT channel by the electrons and holes photogenerated by optical signals. We use hydrodynamic equations both for electrons in the channel and for photoelectrons and photoholes in the absorption layer, or hydrodynamic equations for electrons in the channel combined with a kinetic description of the photogenerated carriers, and the Poisson equation for the self-consistent electric field. The models are used for an analytical as well as numerical (based on an ensemble Monte Carlo particle technique) analysis of the HEMT-photomixer operation in the THz frequency range.

Original languageEnglish
Pages (from-to)210-217
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2004 Dec 20
Externally publishedYes
EventMicrowave and Terahertz Photonics - Strasbourg, France
Duration: 2004 Apr 292004 Apr 30


  • HEMT
  • Photomixing
  • Plasma oscillations
  • Terahertz

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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