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Suppression of decoherence in gallium arsenide multiple quantum wells by means of bang–bang control

Authors :
Yoshihiro Ogawa
Fujio Minami
K. Takasago
Source :
Journal of Luminescence. 128:1029-1031
Publication Year :
2008
Publisher :
Elsevier BV, 2008.

Abstract

We performed a three-pulse six-wave mixing (SWM) measurement on a gallium arsenide (GaAs) multiple quantum well and observed the time-resolved SWM signal using the heterodyne detection technique. The second pulse acts as a π pulse that reverses the time evolution of the non-Markovian dynamics. By changing the pulse interval conditions, we confirmed the suppression of exciton decoherence by π pulse irradiation (bang–bang control).

Details

ISSN :
00222313
Volume :
128
Database :
OpenAIRE
Journal :
Journal of Luminescence
Accession number :
edsair.doi.dedup.....8de1c6718b28b2da9cac9f166e46f337
Full Text :
https://doi.org/10.1016/j.jlumin.2007.12.017