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.
Original language | English (US) |
---|---|
Title of host publication | Quantum Sensing and Nanophotonic Devices IX |
Volume | 8268 |
DOIs | |
State | Published - Feb 20 2012 |
Event | Quantum Sensing and Nanophotonic Devices IX - San Francisco, CA, United States Duration: Jan 22 2012 → Jan 26 2012 |
Other
Other | Quantum Sensing and Nanophotonic Devices IX |
---|---|
Country/Territory | United States |
City | San Francisco, CA |
Period | 1/22/12 → 1/26/12 |
Keywords
- high power
- T2SL
- temperature profile
- thermal conductivity
ASJC Scopus subject areas
- Applied Mathematics
- Computer Science Applications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics