Paper
8 October 1998 Normal infrared spectral emittance of Al2O3
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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.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Simon G. Kaplan and Leonard M. Hanssen "Normal infrared spectral emittance of Al2O3", Proc. SPIE 3425, Optical Diagnostic Methods for Inorganic Transmissive Materials, (8 October 1998); https://doi.org/10.1117/12.326658
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Cited by 4 scholarly publications.
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KEYWORDS
Sapphire

Reflectivity

Transmittance

Temperature metrology

Data modeling

Infrared radiation

Sensors

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