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Proceedings Paper

Temperature dependence of the spontaneous emission factor in microcavities
Author(s): Desi M. Ramoo; Michael J. Adams
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Paper Abstract

In the literature, theoretical studies have indicated the quantisation of optical modes by cavity confinement may lead to enhancement of spontaneous emission factor (beta) . Placement of a radiating system within a cavity with a dimension the order of one wavelength alters the number of allowed optical modes to which photons couple. However, this does not guarantee enhancement. A typical semiconductor laser will be required to operate over a temperature range of at least 80 degree(s)C. Here we model the confinement of a radiating source between two DBR mirrors forming a planar microcavity and consider (beta) as a function of temperature where we use a calculated temperature dependent emission line, which the authors believe to be the first investigation including cavity effects. The results show that at threshold (beta) has a broad maximum with increasing temperature.

Paper Details

Date Published: 12 June 2002
PDF: 11 pages
Proc. SPIE 4646, Physics and Simulation of Optoelectronic Devices X, (12 June 2002); doi: 10.1117/12.470512
Show Author Affiliations
Desi M. Ramoo, Univ. of Essex (United Kingdom)
Michael J. Adams, Univ. of Essex (United Kingdom)

Published in SPIE Proceedings Vol. 4646:
Physics and Simulation of Optoelectronic Devices X
Peter Blood; Marek Osinski; Yasuhiko Arakawa, Editor(s)

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