Free-carrier absorption in a parabolic quantum well with consideration of scattering on ionized impurities
- Authors: Gevorgyan A.H.1
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Affiliations:
- Russian-Armenian (Slavonic) University
- Issue: Vol 51, No 1 (2016)
- Pages: 54-60
- Section: Article
- URL: https://journals.rcsi.science/1068-3372/article/view/227862
- DOI: https://doi.org/10.3103/S1068337216010096
- ID: 227862
Cite item
Abstract
Intra-subband transitions caused by light absorption in a parabolic quantum well is considered taking into account the scattering by ionized impurity centers. To calculate the scattering matrix element, the Born approximation is used and the interaction with the impurity is described by the Coulomb potential. An analytical expression for the absorption coefficient of processes with the initial absorption of photon and further scattering by an ionized impurity center is obtained. For absorption coefficient the frequency characteristics and dependence on the width of quantum well are examined.
Keywords
About the authors
A. H. Gevorgyan
Russian-Armenian (Slavonic) University
Author for correspondence.
Email: gevorgyan.artak@gmail.com
Armenia, Yerevan