Accession Number:

ADA193336

Title:

Laser Spectroscopy of Quantum Well and Superlattice Structures.

Descriptive Note:

Interim rept. no. 1, 3 Dec 87-2 Feb 88,

Corporate Author:

STRATHCLYDE UNIV GLASGOW (UNITED KINGDOM)

Personal Author(s):

Report Date:

1988-02-15

Pagination or Media Count:

15.0

Abstract:

The research described in this report aims to understand the effects of disorder on the lineshapes of exciton luminescence in quantum well QW materials. The low temperature photoluminescence PL and photoluminescence excitation PLE spectra of the excitonic transition in QW material are a sensitive test of interfacial quality. Contributions to the linewidth arise from homogeneous lifetime and inhomogeneous disorder effects. In a typical 50 A well in GaAs, a linewidth at low temperatures of a few meV compares to a typical linewidth about one hundred times smaller in bulk material.

Subject Categories:

  • Physical Chemistry
  • Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE