Laser induced damage in multilayer dielectric gratings due to ultrashort laser pulses. Revision 1

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Chirped pulse amplification is increasingly used to produce intense ultrashort laser pulses. When high-efficiency gratings are the dispersive element, as in the LLNL Petawatt laser, their susceptibility to laser induced damage constitutes a limitation on the peak intensities that can be reached. To obtain robust gratings, it is necessary to understand the causes of short-pulse damage, and to recognize the range of design options for high efficiency gratings. Metal gratings owe their high efficiency to their high conductivity. To avoid the inevitable light absorption that accompanies conductivity, we have developed designs for high efficiency rejection gratings that use only transparent ... continued below

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9 p.

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Shore, B.W.; Stuart, B.C.; Feit, M.D.; Rubenchik, A.M. & Perry, M.D. July 11, 1995.

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Chirped pulse amplification is increasingly used to produce intense ultrashort laser pulses. When high-efficiency gratings are the dispersive element, as in the LLNL Petawatt laser, their susceptibility to laser induced damage constitutes a limitation on the peak intensities that can be reached. To obtain robust gratings, it is necessary to understand the causes of short-pulse damage, and to recognize the range of design options for high efficiency gratings. Metal gratings owe their high efficiency to their high conductivity. To avoid the inevitable light absorption that accompanies conductivity, we have developed designs for high efficiency rejection gratings that use only transparent dielectric materials. These combine the reflectivity of a multi-layer dielectric stack with a diffraction grating. We report here our present understanding of short-pulse laser induced damage, as it applies to dielectric gratings.

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9 p.

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INIS; OSTI as DE96000098

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  • 1. annual solid-state lasers for application to inertial confinement fusion meeting, Monterey, CA (United States), 30 May - 2 Jun 1995

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  • Other: DE96000098
  • Report No.: UCRL-JC--120187-Rev.1
  • Report No.: CONF-9505264--25-Rev.1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 109625
  • Archival Resource Key: ark:/67531/metadc624850

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Office of Scientific & Technical Information Technical Reports

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  • July 11, 1995

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 23, 2016, 1:48 p.m.

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Shore, B.W.; Stuart, B.C.; Feit, M.D.; Rubenchik, A.M. & Perry, M.D. Laser induced damage in multilayer dielectric gratings due to ultrashort laser pulses. Revision 1, article, July 11, 1995; California. (digital.library.unt.edu/ark:/67531/metadc624850/: accessed January 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.