Accession Number:

ADA179124

Title:

Nonlinear Optical Properties and Subpicosecond Dynamics of Excitons and Electron-Hole Plasmas in Multiple Quantum Well Structures.

Descriptive Note:

Bimonthy progress rept. Jan-Feb 87,

Corporate Author:

HUGHES RESEARCH LABS MALIBU CA

Personal Author(s):

Report Date:

1987-03-16

Pagination or Media Count:

11.0

Abstract:

Time resolved photoluminescence measurements are reported for MBE-grown Aluminum, Gallium, Arsenide samples having alloy compositions which result in both direct gap and indirect gap materials. Quantitative results have been obtained for bandgap renormalization induced at high carrier densities and the results compared with a theoretical model. Detailed studies are reported of a marginally indirect sample displaying stimulated emission from both direct and indirect bandgaps. Keywords Photoluminescence, Transient Absorption, Nonlinear Optics, Quantum Wells, Superlattices, Ternary Alloys, Bandgap Renormalization, epitaxy.

Subject Categories:

  • Physical Chemistry
  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE