Papers

Peer-reviewed
May, 2008

Decay of orientational grating of weakly confined excitons in GaAs thin films

JOURNAL OF LUMINESCENCE
  • O. Kojima
    • ,
  • T. Isu
    • ,
  • J. Ishi-Hayase
    • ,
  • A. Kanno
    • ,
  • R. Katouf
    • ,
  • M. Sasaki
    • ,
  • M. Tsuchiya
Volume
128
Number
5-6
First page
963
Last page
965
Language
English
Publishing type
Research paper (scientific journal)
DOI
10.1016/j.jlumin.2007.11.040
Publisher
ELSEVIER SCIENCE BV
We report the dynamical properties of the exciton orientation in GaAs thin films using the orientational grating (OG) technique. From the results of excitation-power dependence of OG signal, we confirmed that the OG signal comes from the optical nonlinearity of weakly confined excitons. In addition, the OG-decay time decreases with an increase of excitation power due to exciton-exciton interaction, and the shortest decay time is below 1ps. Our results may imply the potential application of optical nonlinearity of weakly confined exciton to ultrafast switching devices operating at 1 Tbit/s. (C) 2007 Elsevier B.V. All rights reserved.
Link information
DOI
https://doi.org/10.1016/j.jlumin.2007.11.040
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000255423400080&DestApp=WOS_CPL
ID information
  • DOI : 10.1016/j.jlumin.2007.11.040
  • ISSN : 0022-2313
  • Web of Science ID : WOS:000255423400080
Export
BibTeX RIS
To Papers list