Spectral width dependence of residual carrier effect on nonlinear optical response of weakly confined excitons

O. Kojima, T. Isu, J. Ishi-Hayase, M. Sasaki, A. Kanno, R. Katouf, M. Tsuchiya

研究成果: Conference article査読

8 被引用数 (Scopus)

抄録

We report residual carrier effects on the nonlinear optical response of weakly confined excitons in GaAs thin films. The nonlinear response was investigated using a degenerate four-wave mixing technique with an additional pulse to create the residual carriers. In the case of the additional-pulse incidence, the signal intensity decreases with the time of incidence. However, the ultrafast component comparable to the pulse width in the temporal profiles does not change appreciably. Our results imply the possibility of the realization of ultrafast switching using the exciton response.

本文言語English
ページ(範囲)2858-2860
ページ数3
ジャーナルPhysica Status Solidi (C) Current Topics in Solid State Physics
5
9
DOI
出版ステータスPublished - 2008 12月 1
外部発表はい
イベント34th International Symposium on Compound Semiconductors, ISCS-2007 - Kyoto, Japan
継続期間: 2007 10月 152007 10月 18

ASJC Scopus subject areas

  • 凝縮系物理学

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