Abstract
We present a microscopic many-body theory of laser cooling of semiconductors. Using a standard diagrammatic Green's function approach, we calculate the absorption/luminescence spectra of a partially ionized electron-hole plasma in quasi-equilibrium at the self-consistent T-matrix level. This theory is applied to studying criteria of cooling threshold and efficiency in bulk GaAs, focusing mainly on the temperature range between 5 K and 100 K. In particular, we discuss the transition from the high temperature regime dominated by absorption in the e-h continuum to the low temperature regime dominated by resonant exciton absorption.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2489-2493 |
| Number of pages | 5 |
| Journal | Physica Status Solidi (C) Current Topics in Solid State Physics |
| Volume | 3 |
| Issue number | 7 |
| DOIs | |
| State | Published - 2006 |
| Event | 8th International Workshop on Nonlinear Optics and Excitation Kinetics in Semiconductors, NOEKS 8 - Muenster, Germany Duration: Feb 20 2006 → Feb 24 2006 |
ASJC Scopus subject areas
- Condensed Matter Physics