Title :
Spatio-Temporal resolution of ballistic spin transport in semiconductors
Author :
Zhao, Hui ; Van Driel, Henry M. ; Smirl, Arthur L.
Author_Institution :
Laboratory for Photonics & Quantum Electronics, r 138 IATL, University of Iowa, 52242, USA
Abstract :
Ballistic pure spin currents, which are injected into GaAs quantum wells using quantum interference techniques, are spatially and temporally resolved for the first time, allowing the direct extraction of spin momentum relaxation times.
Keywords :
Current measurement; Electrons; Gallium arsenide; Interference; Motion detection; Nonlinear optics; Optical pumping; Pulse measurements; Spatial resolution; Ultrafast optics;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2007. QELS '07
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/QELS.2007.4431550
