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Proceedings Paper

Normal infrared spectral emittance of Al2O3
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Paper Abstract

We have measured the near-normal ordinary ray transmittance and reflectance of crystalline Al2O3 from 1.6 micrometer to 11 micrometer and temperatures from 296 K to 582 K. The absorptance, or emittance, is derived from 1-(T+R), where T and R are the measured transmittance and reflectance. The derived emittance curves are compared with the predictions of a multi-phonon model prediction. Generally, good agreement is found between the measured and predicted results in the region of the multi-phonon absorption edge.

Paper Details

Date Published: 8 October 1998
PDF: 6 pages
Proc. SPIE 3425, Optical Diagnostic Methods for Inorganic Transmissive Materials, (8 October 1998); doi: 10.1117/12.326658
Show Author Affiliations
Simon G. Kaplan, National Institute of Standards and Technology (United States)
Leonard M. Hanssen, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 3425:
Optical Diagnostic Methods for Inorganic Transmissive Materials
Raju V. Datla; Leonard M. Hanssen, Editor(s)

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