SPIE Proceedings [SPIE SPIE's International Symposium on Optical Science, Engineering, and Instrumentation - San Diego, CA (Sunday 19 July 1998)] Optical Diagnostic Methods for Inorganic Transmissive Materials - <title>Infrared refractive indices and thermo-optic coefficients for several materials</title>Tropf, William J.; Thomas, Michael E.; Linevsky, Milton J.; Datla, Raju V.; Hanssen, Leonard M. · 1998