Circular Polarization Control in Silicon-Based All-Optical Switch
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概要
- 論文の詳細を見る
We present all-optical control of the circular polarization of reflected light on photochemically etched silicon (PCE Si). The polarization properties of photoluminescence (PL) from the PCE Si were observed under circularly polarized laser excitation. As a result, we found that the polarization information from the excitation laser is preserved in the polarization of PL observed in the PCE Si. We found that the preservation effect of circular polarization is useful for realizing a silicon all-optical switch (Si-AOS). In addition, we discuss the switching mechanism of a Si-AOS in terms of the interaction between the spin state of carriers and circularly polarized photons.
- 2005-07-15
著者
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MATSUNO Toshiaki
Tokyo Denki University
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TAKAI Hiroshi
Tokyo Denki University
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OHTANI Naoki
Doshisha University
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Yamamoto Naokatsu
Basic And Advanced Research Department National Institute Of Information And Communications Technolo
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Ohtani Naoki
Doshisha University, Kyoto 610-0321, Japan
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Yamamoto Naokatsu
Basic and Advanced Research Department, National Institute of Information and Communications Technology (NiCT), 4-2-1 Nukui-Kitamachi, Koganei, Tokyo 184-8795, Japan
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