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

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タイトル: A grating-bicoupled plasma-wave photomixer with resonant-cavity enhanced structure
著者: Otsuji, Taiichi 著作を一覧する
Hanabe, Mitsuhiro 著作を一覧する
Nishimura, Takuya 著作を一覧する
Sano, Eiichi 著作を一覧する
キーワード: Optical devices : Quantum-well devices
Optical devices : Sources
Optics at surfaces : Surface plasmons
発行日: 2006年 5月29日
出版者: Optical Society of America
巻: 14
号: 11
開始ページ: 4815
終了ページ: 4825
抄録: 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
資料タイプ: article (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 佐野 栄一


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