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Proceedings Paper

Thermal characteristics and analysis of quantum cascade lasers for biochemical sensing applications
Author(s): Jae Su Yu; Hee Kwan Lee; Steven Slivken; Manijeh Razeghi
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Paper Abstract

We studied the thermal characteristics and analysis of InGaAs/InAlAs quantum cascade lasers (QCLs) in terms of internal temperature distribution, heat flux, and thermal conductance from the heat transfer simulation. The heat source densities were obtained from threshold power densities measured experimentally for QCLs under room-temperature continuous-wave operation. The use of a thick electroplated Au around the laser ridges helps increase the heat removal from devices. The two-dimensional anisotropic heat dissipation model was used to analyze the thermal behaviors inside the device. The simulation results were also compared with those estimated from experimental data.

Paper Details

Date Published: 24 August 2009
PDF: 8 pages
Proc. SPIE 7397, Biosensing II, 739705 (24 August 2009); doi: 10.1117/12.825594
Show Author Affiliations
Jae Su Yu, Kyung Hee Univ. (Korea, Republic of)
Hee Kwan Lee, Kyung Hee Univ. (Korea, Republic of)
Steven Slivken, Northwestern Univ. (United States)
Manijeh Razeghi, Northwestern Univ. (United States)

Published in SPIE Proceedings Vol. 7397:
Biosensing II
Manijeh Razeghi; Hooman Mohseni, Editor(s)

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