Title :
Quantum interference control of a ballistic pure spin current in GaAs/AIGaAs quantum wells
Author :
Stevens, M.J. ; Smirl, A.L. ; Bhat, R.D.R. ; Sipe, J.E. ; van Driel, H.M.
Author_Institution :
Lab. for Photonics & Quantum Electron., Iowa Univ., Iowa City, IA, USA
Abstract :
We demonstrate optical injection of a spin current with no accompanying charge current in GaAs/AlGaAs quantum wells through quantum interference of one- and two-photon absorption of -100 fs phase-locked pulses with orthogonal linear polarizations.
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; high-speed optical techniques; quantum interference phenomena; semiconductor quantum wells; two-photon processes; 100 fs; GaAs-AlGaAs; ballistic spin current; one-photon absorption; orthogonal linear polarizations; phase-locked pulses; quantum interference control; quantum wells; two-photon absorption; Absorption; Electrons; Gallium arsenide; Interference; Nonlinear optics; Optical devices; Polarization; Probes; Solids; Ultrafast optics;
Conference_Titel :
Quantum Electronics and Laser Science, 2003. QELS. Postconference Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-749-0
DOI :
10.1109/QELS.2003.238105
