Influence of the depolarization effect on the nonlinear intersubband absorption spectra of quantum wells
- 15 February 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 47 (7) , 3995-3998
- https://doi.org/10.1103/physrevb.47.3995
Abstract
The effect of the depolarization field on the nonlinear intersubband absorption spectrum of a rectangular quantum well (described by the two-subband model) is discussed. Calculations are performed in the framework of the density-matrix formulation with use of the relaxation-time approximation. Obtained results show that the depolarization effect not only shifts the peak by an amount depending on the intensity of the incident light but also leads to a significant distortion (asymmetry) of the line shape.Keywords
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