Numerical values have been obtained for the refractive indices of calcium fluoride, KU-1 quartz glass, germanium, silicon, and PO-4 ceramic, used in creating high-resolution photolithographic and aerospace optical systems for the 248–5000-nm spectral region. The results of measurements of the refractive index of a new optical material (Elastosil RT-604A silicone compound) in the 296–1800-nm region are presented. The technique of measuring the characteristics of optical materials in the 248–12 000-nm region is analyzed.
© 2012 OSA
Original Manuscript: May 24, 2011
Published: February 29, 2012
L. N. Mironova and S. A. Gradusova, "Measurements of the refractometric characteristics of optical materials in the 248–5000-nm spectral region," J. Opt. Technol. 79, 112-115 (2012)