ELECTRON-PHONON INTERACTIONS IN INTERSUBBAND LASER HETEROSTRUCTURES

2002 ◽  
Vol 12 (04) ◽  
pp. 939-968 ◽  
Author(s):  
Mikhail V. Kisin ◽  
Mitra Dutta ◽  
Michael A. Stroscio

We present a simple semianalytical model, which allows comprehensive analysis of the LO-phonon assisted electron relaxation in quantum well intersubband semiconductor lasers. Examples of scattering rate tailoring in type-I double quantum well heterostructures and analysis of the subband depopulation process in type-II heterostructures illustrate applicability of the model.

2019 ◽  
Vol 34 (5) ◽  
pp. 055013 ◽  
Author(s):  
Zhongliang Qiao ◽  
Xiang Li ◽  
Hong Wang ◽  
Te Li ◽  
Xin Gao ◽  
...  

2004 ◽  
Vol 18 (27n29) ◽  
pp. 3807-3812 ◽  
Author(s):  
BARBARA CHWALISZ ◽  
ANDRZEJ WYSMOLEK ◽  
ROMAN STȨPNIEWSKI ◽  
ADAM BABINSKI ◽  
MAREK POTEMSKI ◽  
...  

Ensembles of sharp emission lines present in the macro-luminescence of type-II GaAs / AlAs double quantum well structures were studied. Micro-luminescence experiments allowed us to conclude that the sharp emission lines originate from lateral GaAlAs islands of a few μm in diameter, formed in the structure. They serve as efficient type-I recombination centers for indirect excitons and/or carriers diffusing in the GaAs / AlAs QW structure. Magneto-luminescence spectra from single islands resemble those observed for natural quantum dots formed in narrow GaAs quantum wells. The observed emission is assigned to the recombination of neutral excitons as well as excitonic molecules.


2018 ◽  
Vol 29 (46) ◽  
pp. 465201 ◽  
Author(s):  
Perry C Grant ◽  
Joe Margetis ◽  
Wei Du ◽  
Yiyin Zhou ◽  
Wei Dou ◽  
...  

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