Semiconductors Investigated by Picosecond Absorption, Fluorescence and Raman Time-Resolved Spectroscopy.
Abstract
The main areas of research are: development of picosecond and subpicosecond laser sources and the application of time-resolved spectroscopy to the study of semiconductors. In the subpicosecond laser development we have developed a stable and reliable laser system oscillator and amplifier. We have achieved over 95% conversion efficiency in ultrafast white light laser source. In addition, we have also achieved laser action in emerald. In the semiconductor research program, we have identified the deep native defects in undoped semi-insulating Cadmium Selenide and have studied the transient dynamics via deep defects and the enhancement of four-wave processes by deep trapping levels. We have studied the spontaneous and stimulated emission spectra and dynamic processes of Gallium Indium Phosphide and GaInP alloys, and characterized the exciton, bound magnetic polarons, and impurity fluorescence bands in alloys of Cadmium manganese Selenide. In addition, we have initiated a research program on the dynamic processes of quantum wells and superlattices.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 30, 1984
- Accession Number
- ADA162303
Entities
People
- Apostolos G. Doukas
- Robert Alfano
Organizations
- City College of New York