Chirp Control of Free Carrier Injection in GaAs Using Femtosecond Optical Pulses
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概要
- 論文の詳細を見る
Control of photoinjection of free carriers in bulk GaAs at room temperature was achieved by changing the chirp of the excitation light pulses having a duration in the 10 fs regime. It was observed from pump-probe measurements that the transmittance increases for negatively chirped pump pulses, which is opposite to the trend observed with other materials. The result is explained by a combination of an intrapulse pump-dump process and band-gap renormalization, and shows the possibility of a new way to control the ultrafast dynamics of many-body systems in semiconductors.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2005-08-15
著者
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WATANABE Naoki
Institute of Applied Physics, University of Tsukuba
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Hattori Toshiaki
Institute For Chemical Reaction Science Tohoku University
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Yano Ryuzi
Ntt Basic Research Laboratories
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Yogi Takeshi
Institute of Applied Physics, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
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Hama Yoshikazu
Institute of Applied Physics, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
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Watanabe Naoki
Institute of Applied Physics, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
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