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A grating-bicoupled plasma-wave photomixer with resonant-cavity enhanced structure

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Title: A grating-bicoupled plasma-wave photomixer with resonant-cavity enhanced structure
Authors: Otsuji, Taiichi Browse this author
Hanabe, Mitsuhiro Browse this author
Nishimura, Takuya Browse this author
Sano, Eiichi4 Browse this author →KAKEN DB
Authors(alt): 佐野, 栄一4
Keywords: Optical devices : Quantum-well devices
Optical devices : Sources
Optics at surfaces : Surface plasmons
Issue Date: 29-May-2006
Publisher: Optical Society of America
Journal Title: OPTICS EXPRESS
Volume: 14
Issue: 11
Start Page: 4815
End Page: 4825
Publisher DOI: 10.1364/OE.14.004815
Abstract: A novel terahertz plasma-wave photomixer that can improve the conversion gain and terahertz radiation power is proposed and evaluated. The photomixer is based on a high-electron mobility transistor and incorporates doubly interdigitated grating strips for the gate electrodes that periodically localize the 2D plasmons in 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. The device features electronic tuning of plasmon characteristic frequencies, providing continuously-tunable operation below 1 THz to beyond 10 THz. Frequency-dependent finite-differential time-domain analysis demonstrates that the grating-bicoupled plasmonic structure acts as a broadband terahertz photomixer and antenna and that the vertical cavity structure effectively enhances the conversion gain and radiation power
Rights: © 2006 Optical Society of America
Type: article (author version)
URI: http://hdl.handle.net/2115/14489
Appears in Collections:量子集積エレクトロニクス研究センター (Research Center for Integrated Quantum Electronics) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 佐野 栄一

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