By Topic

Direct observation of picosecond spin relaxation of excitons in GaAs/AlGaAs quantum wells using spin‐dependent optical nonlinearity

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Tackeuchi, Atsushi ; Fujitsu Laboratories Ltd., 10‐1 Morinosato‐Wakamiya, Atsugi, Kanagawa 243‐01, Japan ; Muto, Shunichi ; Inata, Tsuguo ; Fujii, Toshio

Your organization might have access to this article on the publisher's site. To check, click on this link: 

We have directly observed spin relaxation of excitons in the picosecond region using time‐resolved polarization absorption measurements. With the help of spin‐dependent optical nonlinearity of excitonic absorption, we obtained a fast decay of spin‐up carriers and a fast accumulation of spin‐down carriers with a spin relaxation time of 32 ps for a GaAs/Al0.51Ga0.49As multiple quantum well at room temperature with a time resolution of 1 ps.

Published in:

Applied Physics Letters  (Volume:56 ,  Issue: 22 )