Terahertz Frequency Multiplier Operation of Two Dimensional Plasmon Resonant Photomixer(THz Devices,<Special Section>Heterostructure Microelectronics with TWHM2005)
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概要
- 論文の詳細を見る
We analytically investigated the feasibility of multiplier operation in the terahertz range for our original plasmon resonant photomixer. The photomixer features two unique structures (doubly interdigitated gate gratings and a vertical cavity) for higher radiation efficiencies. Its total field emission properties are the result of a combination of plasmon excitation dynamics and electromagnetic field dynamics. The plasmon excitation formulated by the hydrodynamic equations exhibits fundamental and harmonic resonances whose intensities monotonically decrease with the number of harmonics due to the dispersive plasma damping factors. The electromagnetic dynamics, on the other hand, formulated by the Maxwell's equations, reflect material- and structure-dependent device parameters; the grating-bi-coupled plasmonic cavity together with the vertical cavity structures produce nonlinear field emission properties. This results in extraordinary field enhancement at distinct frequencies inconsistent with the plasmon resonances. The frequency-dependent FDTD (finite difference time domain method) Maxwell's simulation revealed that the field emission peak frequency shifted upward apart from the fundamental mode of plasmon resonant frequency and approached to its second harmonic frequency with increasing the electron density in the plasmon cavity. Calculated total field emission spectra indicated that highly dense 2D-plasmon conditions enable frequency-doubler operation in the terahertz range.
- 社団法人電子情報通信学会の論文
- 2006-07-01
著者
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Sano Eiichi
Research Center For Integrated Quantum Electronics Hokkaido University
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Otsuji Taiichi
Research Institute Of Electrical Communication Tohoku University
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Otsuji Taiichi
Japan Science And Technology Agency Crest
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NISHIMURA Takuya
Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology
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HANABE Mitsuhiro
Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology
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MIYAMOTO Masaki
Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology
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Sano Eiichi
Hokkaido Univ. Sapporo Jpn
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HANABE Mitsuhiro
Kyushu Institute of Technology
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Nishimura Takuya
Graduate School Of Computer Science And Systems Engineering Kyushu Institute Of Technology:(present
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Hanabe Mitsuhiro
Research Institute Of Electrical Communication Tohoku University
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Sano Eiichi
Research Center For Integrated Quantum Electronics (rciqe) Hokkaido University
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Miyamoto Masaki
Graduate School Of Computer Science And Systems Engineering Kyushu Institute Of Technology
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Otsuji Taiichi
Tohoku Univ. Sendai Jpn
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Otsuji Taiichi
Research Institute for Electrical Communication, Tohoku University, Sendai 980-8577, Japan
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