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American Institute of Physics, Applied Physics Letters, 19(101), p. 191104

DOI: 10.1063/1.4766192

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Relevance of intra- and inter-subband scattering on the absorption in heterostructures

Journal article published in 2012 by Camille Ndebeka-Bandou, Francesca Carosella, A. Wacker, Robson Ferreira, Wacker Andreas, Gerald Bastard
This paper is available in a repository.
This paper is available in a repository.

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Abstract

We analyze the absorption lineshape for inter-subband transitions in disordered quasi two-dimensional heterostructures by an exact calculation. The intra-subband scatterings control the central peak, while the tails of the absorption line are dominated by the inter-subband scattering terms. Our numerical study quantitatively assesses the magnitude of the free carrier absorption. The accuracy of different models currently used for gain/absorption is discussed. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4766192]