Nonlinear Optical Properties and Subpicosecond Dynamics of Excitons and Electron-Hole Plasmas in Multiple Quantum Well Structures.
Bimonthy progress rept. Jan-Feb 87,
HUGHES RESEARCH LABS MALIBU CA
Pagination or Media Count:
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.
- *OPTICAL PROPERTIES
- *ALUMINUM GALLIUM ARSENIDES
- *HOLES(ELECTRON DEFICIENCIES)
- NONLINEAR SYSTEMS
- HIGH DENSITY
- QUANTUM ELECTRONICS
- TERNARY COMPOUNDS
- Physical Chemistry
- Plasma Physics and Magnetohydrodynamics