Spatial and temporal laser pulse design for material processing on ultrafast scales

Abstract : The spatio-temporal design of ultrafast laser excitation can have a determinant influence on the physical and engineering aspects of laser-matter interactions,with the potential of upgrading laser processing effects. Energy relaxation channels can be synergetically stimulated as the energy delivery rate is synchronized with the material response on ps timescales. Experimental and theoretical loops based on the temporal design of laser irradiation and rapid monitoring of irradiation effects are, therefore, able to predict and determine ideal optimal laser pulse forms for specific ablation objectives.We illustrate this with examples on manipulating the thermodynamic relaxation pathways impacting the ablation products and nanostructuring of bulk and surfaces using longer pulse envelopes. Some of the potential control factors will be pointed out. At the same time the spatial character can dramatically influence the development of laser interaction. We discuss spatial beam engineering examples such as parallel and non-diffractive approaches designed for highthroughput, high-accuracy processing events.
Type de document :
Article dans une revue
Applied physics. A, Materials science & processing, Springer Verlag, 2014, 114 (1), pp.119. 〈10.1007/s00339-013-8081-9〉
Liste complète des métadonnées

https://hal-ujm.archives-ouvertes.fr/ujm-00911802
Contributeur : Razvan Stoian <>
Soumis le : vendredi 29 novembre 2013 - 22:09:13
Dernière modification le : mercredi 25 juillet 2018 - 14:05:30

Identifiants

Collections

Citation

Razvan Stoian, Jean-Philippe Colombier, Cyril Mauclair, Guanghua Cheng, Praveen Kumar Velpula, et al.. Spatial and temporal laser pulse design for material processing on ultrafast scales. Applied physics. A, Materials science & processing, Springer Verlag, 2014, 114 (1), pp.119. 〈10.1007/s00339-013-8081-9〉. 〈ujm-00911802〉

Partager

Métriques

Consultations de la notice

105