TITLE

Inhomogeneous origin of the interface roughness broadening of intersubband transitions

AUTHOR(S)
Khurgin, Jacob B.
PUB. DATE
September 2008
SOURCE
Applied Physics Letters;9/1/2008, Vol. 93 Issue 9, p091104
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The impact of the interface roughness on intersubband transitions (ISTs) in quantum wells is analyzed as an inhomogeneous broadening due to localization rather than a traditional scattering process. The results offer simple explanation for the temperature dependent spectra of gain and absorption in quantum cascade lasers and also for the strong IST polariton phenomena.
ACCESSION #
34360719

 

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