Collisional broadening and shift of spectral lines in quantum dot lasers

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Collisional broadening and shift of spectral lines in quantum dot lasers

Uskov, Alexander V.; Nishi, K.; Lang, R.
Date: 1999
Copyright: © 1999 American Institute of Physics.This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Uskov, A. V., Nishi, K. and Lang, R. (1999) 'Collisional broadening and shift of spectral lines in quantum dot lasers', Applied Physics Letters, 74(21), pp. 3081-3083 and may be found at http://aip.scitation.org/doi/abs/10.1063/1.124068
Related: http://aip.scitation.org/doi/abs/10.1063/1.124068
Citation: Uskov, A. V., Nishi, K. and Lang, R. (1999) 'Collisional broadening and shift of spectral lines in quantum dot lasers', Applied Physics Letters, 74(21), pp. 3081-3083. doi: 10.1063/1.124068
Published Version: 10.1063/1.124068

Abstract:

We estimate homogeneous broadening and shift of optical transition lines in self-assembled quantum dots (SAQD) caused by elastic Coulomb collisions of carriers in wetting layer with carriers in the SAQD. In particular, we demonstrate that the dephasing time for lasing transitions can be similar to 0.1-1 ps at carrier densities in wetting layer similar to 10(15) m(-2). (C) 1999 American Institute of Physics. (DOI: 10.1063/1.124068)

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