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Proceedings Paper

Thermal distribution in high power optical devices with power-law thermal conductivity
Author(s): Chuanle Zhou; M. Grayson
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Paper Abstract

We introduce a power-law approximation to model non-linear ranges of the thermal conductivity, and under this approximation derive a simple analytical expression for calculating the temperature profile in high power quantum cascade lasers and light emitting diodes. The thermal conductivity of a type II InAs/GaSb superlattice (T2SL) is used as an example, having negative or positive power-law exponents depending on the thermal range of interest. The result is an increase or decrease in the temperature, respectively, relative to the uniform thermal conductivity assumption.

Paper Details

Date Published: 20 January 2012
PDF: 6 pages
Proc. SPIE 8268, Quantum Sensing and Nanophotonic Devices IX, 82680V (20 January 2012); doi: 10.1117/12.913568
Show Author Affiliations
Chuanle Zhou, Northwestern Univ. (United States)
M. Grayson, Northwestern Univ. (United States)

Published in SPIE Proceedings Vol. 8268:
Quantum Sensing and Nanophotonic Devices IX
Manijeh Razeghi; Eric Tournie; Gail J. Brown, Editor(s)

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