Development and Demonstration of Large-Aperture Tiled-Grating Compressors for the OMEGA EP Petawatt-Class Laser System
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LLE Review, Volume 115 113 Introduction The OMEGA EP chirped-pulse–amplification system at LLE requires two 1.5-m large-aperture grating compressors to achieve high-energy petawatt capability.1 The current state-ofthe-art multilayer dielectric (MLD) diffraction gratings cannot meet this size requirement.2 Several institutes have explored the possibility of tiling gratings.3–6 Kessler and Cotel have demonstrated the coherent addition of small-scale gold gratings in a compressor using a far-field method.5,6
منابع مشابه
In situ detection and analysis of laser-induced damage on a 1.5-m multilayer-dielectric grating compressor for high-energy, petawatt-class laser systems.
A grating-inspection system and a damage-analysis method have been developed to measure in situ laser-induced damage on a 1.5-m tiled-grating assembly of the OMEGA EP pulse compressor during a 15-ps, 2.2-kJ energy ramp. The beam fluence at which significant damage growth occurred was determined. This is the first report on beam fluence versus laser-induced-damage growth of meter-sized multilaye...
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تاریخ انتشار 2008