Impurity and laser-induced damage in the growth sectors of rapidly grown DKP crystals

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We report the experimental results of impurity contamination and laser-induced damage investigations on rapidly grown potassium dihydrogen phosphate (KDP) crystals. Using absorption spectroscopy and chemical analysis, we determined the impurity distribution in the different growing sectors of KDP single crystals. The level of impurity was dependent on starting materials and growth rate. We also studied influence of impurities on laser-induced damage in fast grown KDP. The laser damage threshold (LDT) in the impurity-rich prismatic sector is same as in the high purity pyramidal sector within experimental error. Meanwhile, the LDT at the boundary of the prismatic and pyramidal sectors is ... continued below

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9 p.

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Yan, M.; Torres, R.; Runkel, M.; Woods, B.; Hutcheon, I.; Zaitseva, N. et al. February 13, 1997.

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We report the experimental results of impurity contamination and laser-induced damage investigations on rapidly grown potassium dihydrogen phosphate (KDP) crystals. Using absorption spectroscopy and chemical analysis, we determined the impurity distribution in the different growing sectors of KDP single crystals. The level of impurity was dependent on starting materials and growth rate. We also studied influence of impurities on laser-induced damage in fast grown KDP. The laser damage threshold (LDT) in the impurity-rich prismatic sector is same as in the high purity pyramidal sector within experimental error. Meanwhile, the LDT at the boundary of the prismatic and pyramidal sectors is less than half of that in the bulk. Furthermore, we found that the thermal annealing of the crystal eliminated the weakness of this sector boundary and increased its LDT to the same level as in the bulk of the crystal. Result suggests that the laser damage occurred in the vicinity of a high; localized strain field.

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9 p.

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INIS; OSTI as DE97052682

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  • 28. annual symposium on optical materials for high power lasers - Boulder damage symposium, Boulder, CO (United States), 7-9 Oct 1996

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  • Other: DE97052682
  • Report No.: UCRL-JC--126804
  • Report No.: CONF-961070--16
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 492016
  • Archival Resource Key: ark:/67531/metadc681621

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Office of Scientific & Technical Information Technical Reports

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  • February 13, 1997

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  • July 25, 2015, 2:21 a.m.

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  • Feb. 16, 2016, 8 p.m.

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Yan, M.; Torres, R.; Runkel, M.; Woods, B.; Hutcheon, I.; Zaitseva, N. et al. Impurity and laser-induced damage in the growth sectors of rapidly grown DKP crystals, article, February 13, 1997; California. (digital.library.unt.edu/ark:/67531/metadc681621/: accessed July 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.