Abstract

Measurements were made of the thermally induced distortions occurring in laser rods as a result of flash lamp heating. Time-resolved interferograms were obtained by placing the sample in a Mach–Zehnder interferometer and utilizing a Q-switched laser as the interferometer-illumination source. It was observed that significant distortions occur during the pumping pulse leading to diverging-lens effects in the sample rods.

© 1966 Optical Society of America

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