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Proceedings Paper

Exciton optical absorption in a diffusion-induced nonsquare AlGaAs/GaAs quantum well
Author(s): E. Herbert Li; Bernard L. Weiss
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Paper Abstract

The polarization dependent exciton ground state optical absorption in a diffusion induced AlGaAs/GaAs undoped non-square single quantum well has been calculated. The exciton Hamiltonian is expressed in the effective mass approximation using a separable enveloped function to determine both the electron and hole subbands and the 1S-like hydrogenic wavefunction for the coulombic interaction. The k(DOT)p approach is used, assuming a parabolic band without mixing, to obtain the dipole matrix elements, which are then used to determine the TE and TM absorption coefficients.

Paper Details

Date Published: 3 September 1992
PDF: 11 pages
Proc. SPIE 1675, Quantum Well and Superlattice Physics IV, (3 September 1992); doi: 10.1117/12.137584
Show Author Affiliations
E. Herbert Li, Univ. of Surrey (United Kingdom)
Bernard L. Weiss, Univ. of Surrey (United Kingdom)

Published in SPIE Proceedings Vol. 1675:
Quantum Well and Superlattice Physics IV

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