DocumentCode
2791998
Title
THz radiation from optically-induced magnetization in GaAs
Author
Newson, Ryan W. ; Hübner, Jens ; Van Driel, Henry M. ; Nastos, F. ; Sipe, John E.
Author_Institution
Department of Physics and Institute for Optical Sciences, University of Toronto, 60 St George St, ON, M5S1A7, Canada
fYear
2007
fDate
6-11 May 2007
Firstpage
1
Lastpage
2
Abstract
A transient magnetization is induced in a semiconductor via optical spin injection by 100 fs, 800 nm circularly polarized pulses. The weak emitted THz radiation is identified against that from a much stronger photogalvanic source.
Keywords
Gallium arsenide; Laser excitation; Magnetization; Nonlinear optics; Optical polarization; Optical pumping; Optical retarders; Spin polarized transport; Stimulated emission; Ultrafast optics;
fLanguage
English
Publisher
ieee
Conference_Titel
Quantum Electronics and Laser Science Conference, 2007. QELS '07
Conference_Location
Baltimore, MD, USA
Print_ISBN
978-1-55752-834-6
Type
conf
DOI
10.1109/QELS.2007.4431616
Filename
4431616
Link To Document