Transient Optical Properties of the Quasi-Two-Dimensional Electron-Hole Plasma,
Abstract
We investigate the time evolution of the luminescence emitted by a high density 2D electron-hole plasma (EHP) and its optical properties in magnetic fields up to 20 T in GaAs/Al Gal-xAs multiple quantum wells (MQW). Under these conditions lifetime effects due to many body interactions as well as magnetic quantization of the density of states must be taken into account. The heterostructures consist of 25 periods of GaAs/Alo.36GaO.64As with well and barrier widths of 10 and 15 nm, respectively. Sample (a) is grown directly on the GaAs substrate while sample (b) is grown on a 1 micro thick A10.36GaO.64As cladding layer acting as optical confiner for the luminescence. shows the totally different emission spectra obtained from the two heterostructures.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 22, 1992
- Accession Number
- ADP007846
Entities
People
- H. Kalt
- K. Ploog
- R. Cingolani