Structure-Sensitive Design for Wider Tunable Operation of Terahertz Plasmon-Resonant Photomixer(THz Devices,<Special Section>Heterostructure Microelectronics with TWHM2005)

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概要

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• We performed numerical analyses on structure sensitive field emission properties of our proposing plasmon resonant photomixer (PRX) in the terahertz range. The photomixer incorporates doubly interdigitated grating strips for gate electrodes and a vertical resonator structure for realizing highly efficient terahertz emission even at room temperature. We investigated the dependence of total field emission properties of PRX's on their material and dimension parameters. Introduction of low-conductive gate electrodes and ac-coupled 2D periodic plasmon gratings with depleted connecting portions are effective for expanding its lower cutoff frequency. The cutoff frequency, which is around 1.0THz in standard metal-gates configuration, is expanded to less than 500GHz. The output intensity could also be amplified more than double. On the other hand, a shorter vertical cavity is effective for expanding its upper cutoff frequency, which is expanded close to vertical resonant frequency, while maintaining the lower cutoff frequency. The combination of these design rules can realize much broader bandwidth operation.

• 社団法人電子情報通信学会の論文
• 2006-07-01

著者

• Sano Eiichi

  Research Center For Integrated Quantum Electronics Hokkaido University

• Otsuji Taiichi

  Research Institute Of Electrical Communication Tohoku University

• Otsuji Taiichi

  Japan Science And Technology Agency Crest

• NISHIMURA Takuya

  Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology

• HANABE Mitsuhiro

  Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology

• MIYAMOTO Masaki

  Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology

• 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

• Sano Eiichi

  Research Center For Integrated Quantum Electronics (rciqe) Hokkaido University

• Miyamoto Masaki

  Graduate School Of Computer Science And Systems Engineering Kyushu Institute Of Technology

• Otsuji Taiichi

  Tohoku Univ. Sendai Jpn

• Otsuji Taiichi

  Research Institute for Electrical Communication, Tohoku University, Sendai 980-8577, Japan

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