Abstract

The indices of refraction of ADP, KDP, and deuterated KDP were measured at temperatures between the Curie point and room temperature. The estimated accuracy of the data is ±0.0001. The empirical equation Δn = (n2+an+b)c(298 − T) where n is the index at room temperature, Δn is the change in index, and T is the temperature in °K, fits the measurements to within experimental error. The values of the constants a, b, and c are tabulated for each material, permitting n to be calculated for any temperature.

© 1966 Optical Society of America

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Equations (9)

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