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Conferences > IQEC > 1992 > PTh > PTh053
  • XVIII International Quantum Electronics Conference
  • Technical Digest Series (Optica Publishing Group, 1992),
  • paper PTh053

Fermi Edge Singularities in Asymmetric Quantum Wells

G. Livescu, M. T. Asom, and E. Finkman

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Abstract

It was recently predicted by Uenoyama and Sham[1] that the finite hole mass drastically reduces the strength of the photoluminescence near the Fermi level in n-doped quantum wells, while affecting very little the Fermi edge enhancement (FE) in absorption. Therefore FE should be seen in absorption;[2] its observation in luminescence[3,4] was attributed to the presence of localized hole levels.[1,3] We show here that asymmetry also offers a selection rule breaking mechanism, allowing for the appearance of the Fermi edge singularity in photoluminescence.

© 1992 IQEC

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