Numerical Analysis for Resonance Properties of Plasma-Wave Field-Effect Transistors and Their Terahertz Applications to Smart Photonic Network Systems(Joint Special Issue on Heterostructure Microelectronics with TWHM 2000)

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概要

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• This paper describes the numerical analysis for terahertz electromagnetic-wave oscillation/detection properties of plasma-wave field-effect transistors(PW-FET's)and their applications to future smart photonic network systems. The PW-FET is a new type of the electron device that utilizes the plasma resonance effect of highly dense two-dimensional conduction electrons in the FET channel. By numerically solving the hydrodynamic equations for PW-FET's, the plasma resonance characteristics under terahertz electromagnetic-wave absorption are analyzed for three types of FET's;SiMOSFET's, GaAs MESFET's, and InP-based HEMT's. The results indicate that the InP-based sub-100-nm gate-length HEMT's exhibit the most promising oscillation/detection characteristics in the terahertz range with very wide frequency tunability. By introducing the PW-FET's an injection-locked terahertz-frequency-tunable oscillators and terahertz mixers, a new idea of coherent heterodyne detection utilizing terahertz IF(intermediate-frequency)bands is proposed for the future smart photonic network systems that enable real-time adaptive wavelength routing for add-drop multiplexing. The plasma resonance of PW-FET's by means of different frequency generation based on direct photomixing is also proposed as an alternative approach to injection-locked terahertz oscillation. To realize it, virtual carrier excitations by the polariton having photon energy lower than the bandgap of the channel is a possible mechanism.

• 社団法人電子情報通信学会の論文
• 2001-10-01

著者

• Kitamura Hajime

  Kyushu Institute Of Technology Department Of Control Engineering And Science

• OTSUJI Taiichi

  Kyushu Institute of Technology

• NAKAE Shin

  Kyushu Institute of Technology, Department of Control Engineering and Science

• Otsuji Taiichi

  Kyushu Institute Of Technology Department Of Control Engineering And Science

• Nakae Shin

  Kyushu Institute Of Technology Department Of Control Engineering And Science

関連論文

• Modulation Effects of Photocarriers on the Terahertz Plasma-Wave Resonance in High-Electron-Mobility Transistors under Interband Photoexcitation
• Numerical Analysis for Resonance Properties of Plasma-Wave Field-Effect Transistors and Their Terahertz Applications to Smart Photonic Network Systems(Joint Special Issue on Heterostructure Microelectronics with TWHM 2000)

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