Amplitude Saturation of Coherent Phonon Excited by Field Screening in CdTe
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概要
- 論文の詳細を見る
Femtosecond dynamics of 5.00-THz coherent longitudinal optical phonons in CdTe is reported. Polarization dependence indicates that, as in III–V semiconductors, field screening in the depletion layer is the main generation mechanism. The amplitude of the coherent phonons shows saturation with increasing photoexcitation density. This counterintuitive behavior is interpreted as saturation in the screening of surface potential.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2006-12-15
著者
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Ushida Kiminori
Riken (the Institute Of Physical And Chemical Research)
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HIRONAKA Yoichiro
Materials and Structures Laboratory, Tokyo Institute of Technology
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Nakamura Kazutaka
Materials And Structures Laboratory Tokyo Institute Of Technology
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Hironaka Yoichiro
Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan
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Ishioka Kunie
Advanced Nano-Characterization Center, National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan
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Kitajima Masahiro
Advanced Nano-Characterization Center, National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan
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Irisawa Jun
Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan
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Ishioka Kunie
Advanced Nano characterization Center, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0047, Japan
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Kitajima Masahiro
Advanced Nano characterization Center, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0047, Japan
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Ushida Kiminori
RIKEN (The Institute of Physical and Chemical Research), Wako, Saitama 351-0198, Japan
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