DocumentCode
2655733
Title
Dephasing of the LH-HH exciton Raman coherence in GaAs quantum wells: distinguishing between phonon and carrier scattering
Author
VanEngen Spivey, Amelia G. ; Borca, Camelia N. ; Cundiff, Steven T.
Author_Institution
Joint Inst. for Lab. Astrophys., Colorado Univ., Boulder, CO, USA
Volume
3
fYear
2005
fDate
22-27 May 2005
Firstpage
1917
Abstract
Three-beam four-wave mixing shows anti-correlated scattering of HH and LH excitons in GaAs/AlGaAs quantum wells, suggesting that exciton-phonon scattering dominates the exciton dephasing. The correlation increases at higher excitation densities.
Keywords
Raman spectra; high-speed optical techniques; laser beams; multiwave mixing; phonons; semiconductor quantum wells; transport processes; GaAs-AlGaAs; LH-HH exciton dephasing; Raman coherence; anticorrelated scattering; carrier scattering; excitation density; exciton-phonon scattering; phonon scattering; quantum well; three-beam four-wave mixing; Delay; Excitons; Four-wave mixing; Gallium arsenide; Light scattering; Nonlinear optics; Optical scattering; Particle scattering; Phonons; Raman scattering;
fLanguage
English
Publisher
ieee
Conference_Titel
Quantum Electronics and Laser Science Conference, 2005. QELS '05
Print_ISBN
1-55752-796-2
Type
conf
DOI
10.1109/QELS.2005.1549327
Filename
1549327
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