Laser-induced bulk damage in potassium dihydrogen phosphate crystal

Singleton, M. F.; Cooper, J. F.; Andresen, B. D.; Milanovich, F. P.
March 1988
Applied Physics Letters;3/14/1988, Vol. 52 Issue 11, p857
Academic Journal
Potassium dihydrogen phosphate (KDP) is widely used for high-power laser frequency conversion. Its applications, however, are limited by a characteristically low laser damage threshold. This damage is associated with extrinsic impurity inclusions, whose exact nature has not been previously identified. We have now demonstrated that KDP grown in solutions containing organic impurities incorporates select organic compounds into the crystal matrix. Furthermore, we have observed a strong correlation between the concentration of these compounds and the crystal laser damage threshold and density.


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