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Proceedings Paper

Thermal and laser conditioning of production and rapid growth KDP and KD*P crystals
Author(s): L. Jeffrey Atherton; Frank Rainer; James J. De Yoreo; Ian M. Thomas; N. P. Zaitseva; Frank P. De Marco
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Paper Abstract

Large solid state lasers such as Beamlet and the proposed National Ignition Facility require optical materials with extremely high damage thresholds. Potassium dihydrogen phosphate (KDP) and its deuterated analog (KD*P) both require some form of conditioning to reach the design fluence of these lasers. Both the bulk material and the crystal surfaces must have damage thresholds in excess of 16 J/cm2 at 1053 nm and 11 J/cm2 at 351 nm for 3- ns pulselengths. The use of ultrafiltration techniques has been demonstrated to produce bulk material with damage thresholds exceeding these requirements with the use of R:1 laser conditioning. More recent results at LLNL using large-area laser conditioning and thermal annealing are described for a variety of state-of-the-art KDP and KD*P crystals. Results on thermally annealed KD*P with a deuteration range of 60% to 80% are also presented, and compared to those of ordinary KDP.

Paper Details

Date Published: 28 July 1994
PDF: 10 pages
Proc. SPIE 2114, Laser-Induced Damage in Optical Materials: 1993, (28 July 1994); doi: 10.1117/12.180912
Show Author Affiliations
L. Jeffrey Atherton, Lawrence Livermore National Lab. (United States)
Frank Rainer, Lawrence Livermore National Lab. (United States)
James J. De Yoreo, Lawrence Livermore National Lab. (United States)
Ian M. Thomas, Lawrence Livermore National Lab. (United States)
N. P. Zaitseva, Lawrence Livermore National Lab. (United States)
Frank P. De Marco, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 2114:
Laser-Induced Damage in Optical Materials: 1993
Harold E. Bennett; Lloyd L. Chase; Arthur H. Guenther; Brian Emerson Newnam; M. J. Soileau, Editor(s)

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