Tunable Slow Light of 1.3 μm Region in Quantum Dots at Room Temperature
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概要
- 論文の詳細を見る
We report tunable slow light (slowlight) in the 1.3 μm region in quantum dots (QDs) observed at room temperature. The light transmission times are measured by the counter-propagating pump-and-probe method in waveguides with InAs QDs as active regions. The maximum slowdown factor is 2.5 for a 500-μm-long sample. This corresponds to a 2.5 times longer propagation time in the waveguide. The slowdown can be well controlled by tuning the pump beam. This pump power dependence of the slowdown factor agrees well with theoretical predictions obtained by coherent population oscillation (CPO). We also report a method that realizes larger slow light effects.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2007-04-30
著者
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SHIBATA Yasuo
NTT Photonics Laboratories
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Okamoto Hiroshi
Ntt Photonics Laboratories Ntt Corporation
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GOTOH Hideki
University of Illinois at Urbana Champaign Everitt Lab.
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CHANG Shu-Wei
University of Illinois at Urbana Champaign Everitt Lab.
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Chuang Shun-lien
University Of Illinois At Urbana Champaign Everitt Lab.
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Chang Shu-Wei
University of Illinois at Urbana Champaign, Everitt Lab., 1406 W. Green St., Urbana, IL 61801, U.S.A.
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Shibata Yasuo
NTT Photonics Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan
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Gotoh Hideki
University of Illinois at Urbana Champaign, Everitt Lab., 1406 W. Green St., Urbana, IL 61801, U.S.A.
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