Excitation-induced phase shifts of heavy- and light-hole quantum beats in GaAs/AlxGa1−xAs multiple quantum wells

1995 ◽  
Vol 51 (7) ◽  
pp. 4242-4246 ◽  
Author(s):  
A. E. Paul ◽  
W. Sha ◽  
Shekhar Patkar ◽  
Arthur L. Smirl
Keyword(s):  
Quantum Wells ◽  
Phase Shifts ◽  
Light Hole ◽  
Multiple Quantum Wells ◽  
Quantum Beats ◽  
Multiple Quantum

Excited quantum states in CdTe–Cd1−x MnxTe multiple quantum wells and superlattices grown by pulsed laser evaporation and epitaxy

1992 ◽  
Vol 70 (10-11) ◽  
pp. 1027-1034 ◽  
Author(s):  
D. Labrie ◽  
X. Wang ◽  
J. J. Dubowski
Keyword(s):  
Quantum Wells ◽  
Heavy Hole ◽  
Free Exciton ◽  
Pulsed Laser ◽  
Light Hole ◽  
Multiple Quantum Wells ◽  
Laser Evaporation ◽  
Multiple Quantum ◽  
Transition Energies ◽  
Line Positions

The photoreflectance and piezoreflectance spectra of CdTe–Cd0.9Mn0.1 Te multiple quantum wells and superlattices grown by pulsed laser evaporation and epitaxy display series of signatures that are attributed to free exciton transitions occurring between the heavy-hole and light-hole bands, and the upper electron subbands. The signature line positions are in excellent agreement with calculated transition energies obtained from a simple Kronig–Penney model that includes strain effects and the nonparabolicity of the conduction band.

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