Direct measurement of population-induced broadening of quantum well intersubband transitions

The dependence of the absorption spectral linewidth of quantum well intersubband transitions on the electron population in the well is experimentally demonstrated. We show that the dependence of the spectral linewidth on the population is substantial and accounts for some of the broadening previousl...

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Bibliographic Details
Published in:Applied physics letters 1997-08, Vol.71 (6), p.838-840
Main Authors: Xu, Yuanjian, Almogy, Gilad, O’Brien, John, Shakouri, Ali, Xu, Weihua, Salvatore, Randal A., Yariv, Amnon
Format: Article
Language:English
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Summary:The dependence of the absorption spectral linewidth of quantum well intersubband transitions on the electron population in the well is experimentally demonstrated. We show that the dependence of the spectral linewidth on the population is substantial and accounts for some of the broadening previously attributed to donor scattering.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.119662