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

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概要

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• 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

• Optical Society of Americaの論文
• 2006-05-29

著者

• Otsuji Taiichi

  Research Institute Of Electrical Communication Tohoku University

• Otsuji Taiichi

  Japan Science And Technology Agency Crest

• Sano Eiichi

  Hokkaido Univ. Sapporo Jpn

• HANABE Mitsuhiro

  Kyushu Institute of Technology

• Nishimura Takuya

  Graduate School Of Computer Science And Systems Engineering Kyushu Institute Of Technology:(present

• Hanabe Mitsuhiro

  Research Institute Of Electrical Communication Tohoku University

• Otsuji Taiichi

  Tohoku Univ. Sendai Jpn

関連論文

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• Grating-bicoupled plasmon-resonant terahertz emitter fabricated with GaAs-based heterostructure material systems
• Terahertz Frequency Multiplier Operation of Two Dimensional Plasmon Resonant Photomixer(THz Devices,Heterostructure Microelectronics with TWHM2005)
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