Impurity contamination in fast-grown KDP

Ming Yan; James J. De Yoreo; Natalia P. Zaitseva; Richard A. Torres

doi:10.1117/12.240410

27 May 1996 Impurity contamination in fast-grown KDP

Ming Yan, James J. De Yoreo, Natalia P. Zaitseva, Richard A. Torres

Proceedings Volume 2714, 27th Annual Boulder Damage Symposium: Laser-Induced Damage in Optical Materials: 1995; (1996) https://doi.org/10.1117/12.240410
Event: Laser-Induced Damage in Optical Materials: 1995, 1995, Boulder, CO, United States

Abstract

Potassium dihydrogen phosphate (KDP) has traditionally been used as a nonlinear optical material for frequency conversion to produce second and third harmonic radiation. A high laser induced damage threshold for KDP crystals is required for high power laser applications, such as laser fusion. High quality KDP crystals for such applications can be produced by a recently developed rapid crystal growth method. We report the results of an impurity contamination study in raidlygrown KDP crystals. Using absorption spectroscopy, we identified the impurity contamination in the different growth sectors of the crystals. We show that the level of contamination depends on the growth rate achieved during the rapid growth. The impurities observed by absorption spectroscopy are identified as the origin of lattice distortion and optical birefringence in the KDP crystals. The study of impurity incorporation during crystal growth is important for understanding the damage mechanism of KDP.

Citation Download Citation

Ming Yan, James J. De Yoreo, Natalia P. Zaitseva, and Richard A. Torres "Impurity contamination in fast-grown KDP", Proc. SPIE 2714, 27th Annual Boulder Damage Symposium: Laser-Induced Damage in Optical Materials: 1995, (27 May 1996); https://doi.org/10.1117/12.240410

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