Nonlinear absorption of two-dimensional magnetoexcitons in InxGa1xAs/InyAl1yAs quantum wells

T. Rappen, J. Schröder, A. Leisse, M. Wegener, W. Schäfer, N. J. Sauer, and T. Y. Chang
Phys. Rev. B 44, 13093 – Published 15 December 1991
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Abstract

Applying a perpendicular magnetic field to a semiconductor quantum well results in a transition from a two-dimensional into a zero-dimensional system. The mutual interaction of the magnetoexciton levels is studied by populating the 1s magnetoexciton under steady-state conditions and measuring the related changes in absorption. We find redshifts of all energetically higher magnetoexcitons and a blueshift of the 1s exciton due to repulsive exciton-exciton interaction. The experimental results are compared with solutions of the semiconductor Bloch equations. Good qualitative agreement is found.

  • Received 2 July 1991

DOI:https://doi.org/10.1103/PhysRevB.44.13093

©1991 American Physical Society

Authors & Affiliations

T. Rappen, J. Schröder, A. Leisse, and M. Wegener

  • Institut für Physik, Universität Dortmund, 4600 Dortmund 50, Federal Republic of Germany

W. Schäfer

  • Forschungszentrum Jülich, HLRZ, 5170 Jülich, Federal Republic of Germany

N. J. Sauer and T. Y. Chang

  • AT&T Bell Laboratories, Holmdel, New Jersey 07733

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Issue

Vol. 44, Iss. 23 — 15 December 1991

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