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Accurate values for the thermal expansion coefficient α and the thermal coefficient of refractive indexdn/dTare important in the design of a solid-state laser. This paper presents values of α anddn/dTthat were measured for Nd:YAG and Nd:YALO by a single-exposure holographic interferometry technique. The value of α for Nd:YAG agrees closely with that reported before, yet significantly different values ofdn/dTfor Nd:YAG and α for Nd: YALO were obtained. A discussion of the measurement techniques is given.
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Young et al. (1972) studied this question.
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