Ultrafast nonlinear optical response of weakly confined excitons in GaAs thin films

O. Kojima, T. Isu, J. Ishi-Hayase, M. Sasaki, M. Tsuchiya

研究成果: Conference article

6 引用 (Scopus)

抜粋

We report on an ultrafast nonlinear optical response of weakly confined excitons in GaAs thin films observed by a two-beam degenerate four-wave-mixing (DFWM) technique. An ultrafast optical response comparable to the pulse width appears under ultrashort-pulse-laser excitation condition. We clarified from the DFWM spectra that the plural exciton states contribute to the ultrafast response. The results imply a possibility of ultrafast switching devices using weakly confined excitons.

元の言語English
ページ(範囲)1731-1734
ページ数4
ジャーナルPhysica Status Solidi (C) Current Topics in Solid State Physics
4
発行部数5
DOI
出版物ステータスPublished - 2007 12 1
外部発表Yes
イベント33rd International Symposium on Compound Semiconductors, ISCS-2006 - Vancouver, BC, Canada
継続期間: 2006 8 132006 8 17

ASJC Scopus subject areas

  • Condensed Matter Physics

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