8 research outputs found
Investigation of physical effects leading to laser damage growth on optical coatings in the sub-ps regime
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Analysis of laser damage tests on coatings designed for broad bandwidth high reflection of femtosecond pulses
Full text linkImplications of laser beam metrology on laser damage temporal scaling law for dielectric materials in the picosecond regime
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Temporal dependency of laser damage on dielectric mirrors for Petawatt applications in the picosecond regime
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Analysis of laser damage tests on a coating for broad bandwidth high reflection of femtosecond pulses
Full text linkSimulation of internal stress waves generated by laser-induced damage in multilayer dielectric gratings
Full text linkSimple and robust method for determination of laser fluence thresholds for material modifications: an extension of Liu’s approach to imperfect beams
Full text link115 PW–850 J compressed beam demonstration using the PETAL facility
Full text linkInternational audienceThe Petawatt Aquitaine Laser (PETAL) facility was designed and constructed by the French Commissariat à l'énergie atomique et aux énergies alternatives (CEA) as an additional PW beamline to the Laser MegaJoule (LMJ) facility. PETAL energy is limited to 1kJ at the beginning due to the damage threshold of the final optics. In this paper, we present the commissioning of the PW PETAL beamline. The first kJ shots in the amplifier section with a large spectrum front end, the alignment of the synthetic aperture compression stage and the initial demonstration of the 1.15 PW @ 850 J operations in the compression stage are detailed
