Sub-picosecond laser damage growth on high reflective coatings for high power applications

Martin Sozet 1 Stéphane Bouillet 1 Johann Berthelot 2 Jérôme Neauport 1 Laurent Lamaignère 1 Laurent Gallais 3
1 CEA-CESTA - Commissariat à l'Energie Atomique et aux Energies Alternatives
2 CLARTE - CLARTE
FRESNEL - Institut FRESNEL
3 ILM - ILM
FRESNEL - Institut FRESNEL
Abstract : Growth of laser damage on High Reflection (HR) thin film coatings is investigated at the wavelength of 1.030µm in the sub-picosecond regime. An experimental laser damage setup in a pump / probe configuration is used to study the growth behavior of engineered damage sites as well as laser damage sites. Results demonstrate that engineered sites and laser damage sites grow identically which indicates that the growth phenomenon is intrinsic to materials and stack design. In order to analyze the experimental results, we have developed a numerical model to simulate growth. Using FEM simulations, we demonstrate that growth is governed by the evolution of the electric field distribution in the mirror stack under the successive laser shots, which is supported by time-resolved observations of damage growth events. Eventually the results are compared to laser damage observations made on of full scale PETAL mirrors, which fully support the approach.
Keywords : OCIS codes: (1403330) Laser damage (1407090) Ultrafast lasers (3100310) Thin films
Type de document :
Article dans une revue
Optics Express, Optical Society of America, 2017, 25 (21), pp.12067 - 12097. 〈10.1364/OE.25.025767〉
Liste complète des métadonnées

Littérature citée [17 références]  Voir  Masquer  Télécharger
https://hal-cea.archives-ouvertes.fr/cea-01622286
Contributeur : Jerome Neauport <>
Soumis le : mardi 24 octobre 2017 - 17:17:49
Dernière modification le : jeudi 26 juillet 2018 - 11:42:01

Fichier

oe-25-21-25767.pdf
Fichiers éditeurs autorisés sur une archive ouverte

Identifiants

Collections

CEA | IF | EC-MARSEILLE | UNIV-AMU

Citation

Martin Sozet, Stéphane Bouillet, Johann Berthelot, Jérôme Neauport, Laurent Lamaignère, et al.. Sub-picosecond laser damage growth on high reflective coatings for high power applications. Optics Express, Optical Society of America, 2017, 25 (21), pp.12067 - 12097. 〈10.1364/OE.25.025767〉. 〈cea-01622286〉

Exporter

BibTeX TEI DC DCterms EndNote

Partager

Métriques

Consultations de la notice

92

Téléchargements de fichiers

40

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD