Giant nonlinear phase shift at exciton resonance in ZnSe

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

Research output: Contribution to journalArticle

20 Citations (Scopus)

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 languageEnglish
Pages (from-to)192-194
Number of pages3
JournalApplied Physics Letters
Volume60
Issue number2
DOIs
Publication statusPublished - 1992
Externally publishedYes

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phase shift
excitons
molecular beam epitaxy
nonlinearity
polarization
pulses
spectroscopy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Saiki, T., Takeuchi, K., Kuwata-Gonokami, M., Mitsuyu, T., & Ohkawa, K. (1992). Giant nonlinear phase shift at exciton resonance in ZnSe. Applied Physics Letters, 60(2), 192-194. https://doi.org/10.1063/1.106960

Giant nonlinear phase shift at exciton resonance in ZnSe. / Saiki, Toshiharu; Takeuchi, K.; Kuwata-Gonokami, M.; Mitsuyu, T.; Ohkawa, K.

In: Applied Physics Letters, Vol. 60, No. 2, 1992, p. 192-194.

Research output: Contribution to journalArticle

Saiki, T, Takeuchi, K, Kuwata-Gonokami, M, Mitsuyu, T & Ohkawa, K 1992, 'Giant nonlinear phase shift at exciton resonance in ZnSe', Applied Physics Letters, vol. 60, no. 2, pp. 192-194. https://doi.org/10.1063/1.106960
Saiki, Toshiharu ; Takeuchi, K. ; Kuwata-Gonokami, M. ; Mitsuyu, T. ; Ohkawa, K. / Giant nonlinear phase shift at exciton resonance in ZnSe. In: Applied Physics Letters. 1992 ; Vol. 60, No. 2. pp. 192-194.
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