Refractive Index of Cuprous Chloride*

Abstract

The refractive index of single-crystal CuCl at room temperature was measured in the wavelength range 0.42–1.2 μm using a V-block refractometer. The range of wavelengths was extended to 22 μm by measuring the wavelength dependence of interference fringes in thin polished plates. A dispersion equation was fitted to the data over a limited wavelength range.