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

20 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
60
2
DOI
出版ステータスPublished - 1992
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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