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Proceedings Paper

Closed-form evaluation of thermal contrast
Author(s): Gonzalo Paez; Marija Strojnik
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Paper Abstract

We develop a new expression for the thermal contrast of a black-body radiator. The derivative of exitance of a blackbody radiator with respect to temperature, integrated over the wavelength interval, is given in a closed form. The thermal contrast is found within an interval using a series evaluation and a closed-form compensated approximation. The compensated approximation is more accurate than the series expansion for lower values of x, corresponding to high temperatures and/or longer wavelengths.

Paper Details

Date Published: 26 July 1999
PDF: 9 pages
Proc. SPIE 3698, Infrared Technology and Applications XXV, (26 July 1999); doi: 10.1117/12.354494
Show Author Affiliations
Gonzalo Paez, Ctr. de Investigaciones en Optica (Mexico)
Marija Strojnik, Ctr. de Investigaciones en Optica (United States)


Published in SPIE Proceedings Vol. 3698:
Infrared Technology and Applications XXV
Bjorn F. Andresen; Marija Strojnik, Editor(s)

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