Ultrafast optical Kerr effect of excitons weakly confined in GaAs thin films

Atsushi Kanno, Redouane Katouf, Osamu Kojima, Junko Ishi-Hayase, Masahiro Tsuchiya, Toshiro Isu

研究成果: Conference article査読

2 被引用数 (Scopus)

抄録

We investigate ultrafast response of optical Kerr effect (OKE) induced by excitons weakly confined in GaAs thin films. The observed decay time of optical response agrees approximately with incident pulse duration. At 100-fs pulse irradiation the response time is estimated to be 170 fs, though the exciton lifetime is about 10 ns. It is considered that the ultrafast response of OKE is caused by not population relaxation but orientation relaxation of excitons.

本文言語English
ページ(範囲)360-363
ページ数4
ジャーナルPhysica Status Solidi (C) Current Topics in Solid State Physics
5
1
DOI
出版ステータスPublished - 2008 6月 30
外部発表はい
イベント15th International Conference on Nonequilibrium Carrier Dynamics in Semiconductors, HCIS15 - Tokyo, Japan
継続期間: 2007 7月 232007 7月 27

ASJC Scopus subject areas

  • 凝縮系物理学

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