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11 April 2024 Mitigating laser-induced damage and plasma-induced shock waves in optical components with a coating solution for high-power laser applications
Amira Guediche, Michel Arrigoni, Francesco Delloro, Serge Guetta, Nathan Menetrier, Laurent Belliard, Bernard Perrin, Marc Duquennoy, Emilien Lescoute, Michel Boustie, Hervé Piombini
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Proceedings Volume PC12939, High-Power Laser Ablation VIII; PC129390X (2024) https://doi.org/10.1117/12.3016177
Event: SPIE High-Power Laser Ablation, 2024, Santa Fe, New Mexico, United States
Abstract
Spallation caused by shock waves in optical components such as those used in the Laser MegaJoule facility during laser operation leads to material fracture during a Laser-Induced damage event. One solution may be to use a viscoelastic thin film on these components to mitigate spallation, but it must have excellent optical, mechanical, and resistance to laser damage properties. Among the viscoelastic materials investigated were Nafion and polydimethylsiloxane-based Ormosil. These materials, as thin films deposited on a fused silica substrate, were studied under nanosecond pulsed lasers at 1064 and 532 nm with different diagnostics in situ and post-mortem. In particular, the effect of the films on spallation was studied using the laser shock technique. Preliminary results showed that these thin films have interesting properties that could help to reduce mechanical damage to optical components.
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Amira Guediche, Michel Arrigoni, Francesco Delloro, Serge Guetta, Nathan Menetrier, Laurent Belliard, Bernard Perrin, Marc Duquennoy, Emilien Lescoute, Michel Boustie, and Hervé Piombini "Mitigating laser-induced damage and plasma-induced shock waves in optical components with a coating solution for high-power laser applications", Proc. SPIE PC12939, High-Power Laser Ablation VIII, PC129390X (11 April 2024); https://doi.org/10.1117/12.3016177
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KEYWORDS
Laser induced damage
Optical components
High power lasers
Coating
Laser-matter interactions
Optical properties
Plasma generation
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