Quantum kinetics of exciton and folded acoustic phonon interaction inGaAsmultiple quantum wells

2006 ◽  
Vol 73 (15) ◽  
Author(s):  
Y. Ogawa ◽  
A. Iwamatsu ◽  
F. Minami
Keyword(s):  
Quantum Wells ◽  
Acoustic Phonon ◽  
Phonon Interaction ◽  
Quantum Kinetics ◽  
Kinetics Of

Quantum kinetics of exciton-folded acoustic phonon in GaAs multiple quantum wells

2007 ◽  
Vol 122-123 ◽  
pp. 536-538
Author(s):  
Yoshihiro Ogawa ◽  
Akihiro Iwamatsu ◽  
Fujio Minami
Keyword(s):  
Quantum Wells ◽  
Acoustic Phonon ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Quantum Kinetics ◽  
Kinetics Of

DEPENDENCE OF EXCITON FORMATION ON ITS CENTER-OF-MASS MOMENTUM IN QUANTUM WELLS

2001 ◽  
Vol 15 (28n30) ◽  
pp. 3660-3663 ◽  
Author(s):  
I.-K. OH ◽  
JAI SINGH
Keyword(s):  
Quantum Wells ◽  
Optical Phonon ◽  
Acoustic Phonon ◽  
Center Of Mass ◽  
Longitudinal Optical ◽  
Longitudinal Optical Phonon ◽  
Deformation Potential ◽  
Phonon Interaction ◽  
Carrier Temperature ◽  
Comprehensive Study

We present a comprehensive study of the process of exciton formation due to exciton-phonon interaction. Using the exciton-phonon interaction arising from deformation potential, piezoelectric, and polar couplings, we have calculated the rate of formation of an exciton as a function of carrier densitiies, temperatures, and center-of-mass momentum ( K ‖) in quantum wells. Our results show that excitons are dominantly formed at non-zero K ‖, which agrees very well with experiments. The formation of an exciton due to emission of longitudinal optical phonon is found to be more efficient at relatively small values of K ‖, and that due to acoustic phonon emission is more efficient at relatively large K ‖ values for carrier temperature Te-h≲50 K.

Coherent control and quantum kinetics of LO-phonon emission in CdZnTe quantum wells

2007 ◽  
Vol 32 (2-3) ◽  
pp. 119-121
Author(s):  
P. Gilliot ◽  
C. Brimont ◽  
S. Cronenberger ◽  
O. Crégut ◽  
M. Gallart ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Coherent Control ◽  
Phonon Emission ◽  
Quantum Kinetics ◽  
Kinetics Of
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