Abstract

The refractive indices of synthetic calcium fluoride for 69 wavelengths from 138 nm in the deep ultraviolet to 2326 nm in the near infrared were measured by the minimum-deviation method in a nitrogen environment. We made these measurements at 20° and 25 °C, respectively, to determine the thermal coefficients of the refractive index over this wide-wavelength region. These refractive indices were fitted to a four-term Sellmeier dispersion formula. The temperature coefficients of the refractive index were fitted to a Hoffman-type dispersion formula. The standard deviation of the residual between the observed values and the calculated values was 0.6 × 10^-6 for the refractive index and was 0.13 × 10^-6/°C for the temperature coefficient of the refractive index.

© 2002 Optical Society of America

Absolute refractive indices and thermal coefficients of fused silica and calcium fluoride near 193 nm

Rajeev Gupta, John H. Burnett, Ulf Griesmann, and Matthew Walhout
Appl. Opt. 37(25) 5964-5968 (1998)

Absolute refractive indices and thermal coefficients of CaF₂, SrF₂, BaF₂, and LiF near 157 nm

John H. Burnett, Rajeev Gupta, and Ulf Griesmann
Appl. Opt. 41(13) 2508-2513 (2002)

Measurement of the refractive index of distilled water from the near-infrared region to the ultraviolet region

Masahiko Daimon and Akira Masumura
Appl. Opt. 46(18) 3811-3820 (2007)

A Redetermination of Some Optical Properties of Calcium Fluoride

Irving H. Malitson
Appl. Opt. 2(11) 1103-1107 (1963)

Refractive Index of Nd:CaF₂ and Some Nd Doped Glasses as a Function of Wavelength, % Neodymium, and Temperature

Roy C. Gunter and Joseph V. Closs
Appl. Opt. 14(1) 174-176 (1975)