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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

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.

Original language	English (US)
Pages (from-to)	192-194
Number of pages	3
Journal	Applied Physics Letters
Volume	60
Issue number	2
DOIs	https://doi.org/10.1063/1.106960
State	Published - 1992
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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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",

year = "1992",

doi = "10.1063/1.106960",

language = "English (US)",

volume = "60",

pages = "192--194",

journal = "Applied Physics Letters",

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T1 - Giant nonlinear phase shift at exciton resonance in ZnSe

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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U2 - 10.1063/1.106960

DO - 10.1063/1.106960

M3 - Article

AN - SCOPUS:0039913987

SN - 0003-6951

VL - 60

SP - 192

EP - 194

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 2

ER -

Giant nonlinear phase shift at exciton resonance in ZnSe

Abstract

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