Giant nonlinear phase shift at exciton resonance in ZnSe

T. Saiki; K. Takeuchi; M. Kuwata-Gonokami; T. Mitsuyu; K. Ohkawa

doi:10.1063/1.106960

Giant nonlinear phase shift at exciton resonance in ZnSe

T. Saiki, K. Takeuchi, M. Kuwata-Gonokami, T. Mitsuyu, K. Ohkawa

研究成果: Article › 査読

21 被引用数 (Scopus)

抄録

We study the optical nonlinearity just at the exciton resonance in ZnSe at 8 K. A sample with thickness of 2.4 μm is grown by molecular-beam epitaxy on a GaAs substrate. Using reflection-type polarization spectroscopy with weak picosecond optical pulses, we observe nonlinear phase shift, being free from incoherent processes caused by the accumulation of excitons. A huge nonlinear phase shift, 0.15 deg cm²/kW, whose effective χ⁽³⁾ is over 10^-2 esu, with a response time shorter than 20 ps is obtained.

本文言語	English
ページ（範囲）	192-194
ページ数	3
ジャーナル	Applied Physics Letters
巻	60
号	2
DOI	https://doi.org/10.1063/1.106960
出版ステータス	Published - 1992
外部発表	はい

ASJC Scopus subject areas

物理学および天文学（その他）

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10.1063/1.106960

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abstract = "We study the optical nonlinearity just at the exciton resonance in ZnSe at 8 K. A sample with thickness of 2.4 μm is grown by molecular-beam epitaxy on a GaAs substrate. Using reflection-type polarization spectroscopy with weak picosecond optical pulses, we observe nonlinear phase shift, being free from incoherent processes caused by the accumulation of excitons. A huge nonlinear phase shift, 0.15 deg cm2/kW, whose effective χ(3) is over 10-2 esu, with a response time shorter than 20 ps is obtained.",

author = "T. Saiki and K. Takeuchi and M. Kuwata-Gonokami and T. Mitsuyu and K. Ohkawa",

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doi = "10.1063/1.106960",

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AU - Saiki, T.

AU - Takeuchi, K.

AU - Kuwata-Gonokami, M.

AU - Mitsuyu, T.

AU - Ohkawa, K.

PY - 1992

Y1 - 1992

N2 - We study the optical nonlinearity just at the exciton resonance in ZnSe at 8 K. A sample with thickness of 2.4 μm is grown by molecular-beam epitaxy on a GaAs substrate. Using reflection-type polarization spectroscopy with weak picosecond optical pulses, we observe nonlinear phase shift, being free from incoherent processes caused by the accumulation of excitons. A huge nonlinear phase shift, 0.15 deg cm2/kW, whose effective χ(3) is over 10-2 esu, with a response time shorter than 20 ps is obtained.

AB - We study the optical nonlinearity just at the exciton resonance in ZnSe at 8 K. A sample with thickness of 2.4 μm is grown by molecular-beam epitaxy on a GaAs substrate. Using reflection-type polarization spectroscopy with weak picosecond optical pulses, we observe nonlinear phase shift, being free from incoherent processes caused by the accumulation of excitons. A huge nonlinear phase shift, 0.15 deg cm2/kW, whose effective χ(3) is over 10-2 esu, with a response time shorter than 20 ps is obtained.

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JO - Applied Physics Letters

JF - Applied Physics Letters

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Giant nonlinear phase shift at exciton resonance in ZnSe

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