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3 April 2014 Analytical model for the electro-thermal feedback effect in a microbolometer infrared focal plane array
Seung-Man Park, Seungoh Han, Hee Chul Lee
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Optical Engineering, Vol. 53, Issue 4, 043104 (April 2014). https://doi.org/10.1117/1.OE.53.4.043104
Abstract
An analytical model for the electro-thermal feedback effect in a microbolometer infrared focal plane array is presented. The presented model is the integrated optical-electro-thermal model, in which the electro-thermal feedback effect incorporated with the response of incident IR can be described. In addition, since the model is based on physics, the model parameters also have their own physical meaning. This analytical model can be easily utilized to describe the temperature increase caused by the applied heat sources and has a unique feature describing capability of optical-electro-thermal analysis in a quasi-steady-state, which can hardly be performed with thermal analysis tools based on the finite element method. The model shows that the temperature of the microbolometer in this study can be increased 7.1% to 18.6% more by the electro-thermal feedback effect.
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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Seung-Man Park, Seungoh Han, and Hee Chul Lee "Analytical model for the electro-thermal feedback effect in a microbolometer infrared focal plane array," Optical Engineering 53(4), 043104 (3 April 2014). https://doi.org/10.1117/1.OE.53.4.043104
Published: 3 April 2014
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KEYWORDS
Microbolometers
Infrared radiation
Resistance
Thermal modeling
Staring arrays
Integrated modeling
Thermography
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