Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Thermodynamic balance in quantum dot lasers

Summers, Huw David, Thomson, John Duncan, Smowton, Peter Michael ORCID:, Blood, Peter and Hopkinson, M. 2001. Thermodynamic balance in quantum dot lasers. Semiconductor Science and Technology 16 (3) , pp. 140-143. 10.1088/0268-1242/16/3/303

Full text not available from this repository.


The spontaneous emission and optical gain spectra from an InGaAs quantum dot laser have been independently measured under the same operating conditions. Using these spectra a combined probability-distribution function describing the electron occupancy in the conduction and valence bands has been experimentally determined. Comparison of this function with theoretical curves based on Fermi-Dirac statistics shows that for temperatures down to 100 K the carrier occupancy statistics are accurately described by thermal distributions. Measurements at 70 K show a breakdown of thermodynamic equilibrium indicated by non-thermal carrier distributions.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Uncontrolled Keywords: Optics; quantum optics; lasers
ISSN: 0268-1242
Last Modified: 17 Oct 2022 08:56

Citation Data

Cited 57 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item