A novel terahertz plasma-wave photomixer with resonant-cavity enhanced structure

Taiichi Otsuji, Mitsuhiro Hanabe, Jun Ichi Shigenobu, Seigo Takahashi, Eiichi Sano

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

Two-dimensional (2D) plasmon in a submicron transistor channel can make resonant oscillation in the terahertz range. We propose a novel terahertz plasma-wave photomixer that can improve the conversion gain and terahertz radiation power. The photomixer is based on a high-electron mobility transistor (HEMT) and incorporates doubly interdegitated grating strips for the gate electrodes that periodically localize the 2D plasmons in sub 100-nm regions with a micron-order interval. A vertical cavity structure is formed in between the top metal grating and a terahertz mirror placed at the backside. FDTD simulation demonstrates that a newly-introduced vertical cavity structure effectively enhances the conversion gain and radiation power.

Original languageEnglish
Title of host publicationConference Digest of the 2004 Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics
EditorsM. Thumm, W. Wiesbeck
Pages331-332
Number of pages2
Publication statusPublished - 2004 Dec 1
Externally publishedYes
EventConference Digest of the 2004 Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics - Karlsruhe, Germany
Duration: 2004 Sep 272004 Oct 1

Publication series

NameConference Digest of the 2004 Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics

Other

OtherConference Digest of the 2004 Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics
CountryGermany
CityKarlsruhe
Period04/9/2704/10/1

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Otsuji, T., Hanabe, M., Shigenobu, J. I., Takahashi, S., & Sano, E. (2004). A novel terahertz plasma-wave photomixer with resonant-cavity enhanced structure. In M. Thumm, & W. Wiesbeck (Eds.), Conference Digest of the 2004 Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics (pp. 331-332). (Conference Digest of the 2004 Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics).