High-temperature optical properties of oxide dome materials

Raymond M. Sova; Milton J. Linevsky; Michael E. Thomas; F. Fausten Mark

doi:10.1117/12.130783

14 December 1992 High-temperature optical properties of oxide dome materials

Raymond M. Sova, Milton J. Linevsky, Michael E. Thomas, F. Fausten Mark

Proceedings Volume 1760, Window and Dome Technologies and Materials III; (1992) https://doi.org/10.1117/12.130783
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

A vacuum emissometer utilizing a CO2 laser for high temperature sample heating has been designed and built for use with a Fourier Transform spectrometer. A two-color pyrometer technique is used to calculate sample temperatures. Oxides such as sapphire, spinel, yttria, ALON and fused silica are experimentally characterized from 600 to 2000 K and from 500 to 5000 cm-1. A glowing yttria sample has also been characterized over the spectral range of 8500 to 13500 cm-1. Good agreement with a quantum mechanical multiphoton model for the complex index of refraction, also developed at APL, is obtained.

Citation Download Citation

Raymond M. Sova, Milton J. Linevsky, Michael E. Thomas, and F. Fausten Mark "High-temperature optical properties of oxide dome materials", Proc. SPIE 1760, Window and Dome Technologies and Materials III, (14 December 1992); https://doi.org/10.1117/12.130783

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