タンネットダイオード発振器を用いたサブテラヘルツイメージング [in Japanese] Development of TUNNETT Diode and Its Applications for Sub-THz Imaging [in Japanese]
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- 西澤 潤一 NISHIZAWA Jun-ichi
- 財団法人 半導体研究振興会 Semiconductor Research Institute
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- 倉林 徹 KURABAYASHI Toru
- 財団法人 半導体研究振興会 Semiconductor Research Institute
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Author(s)
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- 西澤 潤一 NISHIZAWA Jun-ichi
- 財団法人 半導体研究振興会 Semiconductor Research Institute
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- 倉林 徹 KURABAYASHI Toru
- 財団法人 半導体研究振興会 Semiconductor Research Institute
Abstract
GaAs分子層成長法による低温化した極薄膜多層成長の技法を用いタンネットダイオードを開発し,50-700GHzまでの基本波室温連続発振を実現した.さらに所望の周波数のタンネット発振器を用いた小型サブテラヘルツイメージングシステムを構成し,各物質媒体を透過する周波数を選択し,生体を含む媒質中の特定物質のイメージングと微量物質検出の可能性を検討した.ヒト肝臓癌の組織の透過および反射イメージングでは正常組織中の癌組織の画像化が可能なこと,および電磁波反射強度測定によるウシ血清におけるグルコース濃度の精密測定の可能性を実験的に示した.
Novel scanning sub-terahertz imaging using a GaAs tunneling transit-time (TUNNETT) oscillator diode with an oscillation frequency of 50-700GHz has been demonstrated in a compact system. Power-transmission and power-reflection imaging using TUNNETT oscillator was carried out to observe the inner structure of bio-medical materials. The intensity of the transmission power and the reflection power was very sensitive for sugar level in the solution.
Journal
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- IEICE technical report
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IEICE technical report 105(629), 17-22, 2006-02-23
The Institute of Electronics, Information and Communication Engineers
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