Analytical and computer models of terahertz HEMT-photomixer

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

doi:10.1117/12.548948

Analytical and computer models of terahertz HEMT-photomixer

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

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

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 language	English
Pages (from-to)	210-217
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5466
DOIs	https://doi.org/10.1117/12.548948
Publication status	Published - 2004 Dec 20
Externally published	Yes
Event	Microwave and Terahertz Photonics - Strasbourg, France Duration: 2004 Apr 29 → 2004 Apr 30

Keywords

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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title = "Analytical and computer models of terahertz HEMT-photomixer",

abstract = "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.",

keywords = "HEMT, Photomixing, Plasma oscillations, Terahertz",

author = "Victor Ryzhii and Akira Satou and Irina Khmyrova and Maxim Ryzhii and Taiichi Otsuji and Michael Shur",

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AU - Ryzhii, Victor

AU - Satou, Akira

AU - Khmyrova, Irina

AU - Ryzhii, Maxim

AU - Otsuji, Taiichi

AU - Shur, Michael

PY - 2004/12/20

Y1 - 2004/12/20

N2 - 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.

AB - 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.

KW - HEMT

KW - Photomixing

KW - Plasma oscillations

KW - Terahertz

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