English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/149506
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Melt front propagation in dielectrics upon femtosecond laser irradiation: Formation dynamics of a heat-affected layer

AuthorsGarcía-Lechuga, Mario ; Solís Céspedes, Javier ; Siegel, Jan
Issue Date26-Apr-2016
PublisherAmerican Institute of Physics
CitationApplied Physics Letters 108 (2016)
AbstractSeveral studies in dielectrics have reported the presence of a thin heat-affected layer underneath the ablation crater produced by femtosecond laser irradiation. In this work, we present a time-resolved microscopy technique that is capable of monitoring the formation dynamics of this layer and apply it to the study of a phosphate glass exposed to single pulses below the ablation threshold. A few nanoseconds after laser excitation, a melt front interface can be detected, which propagates into the bulk, gradually slowing down its speed. By means of image analysis combined with optical modeling, we are able to determine the temporal evolution of the layer thickness and its refractive index. Initially, a strong transient decrease in the refractive index is observed, which partially recovers afterwards. The layer resolidifies after approximately 1 μs after excitation, featuring a maximum thickness of several hundreds of nanometers. Published by AIP Publishing.
Description5 págs.; 4 figs. 1 tab.
Publisher version (URL)http://doi.org/10.1063/1.4948262
Identifiersdoi: 10.1063/1.4948262
issn: 0003-6951
Appears in Collections:(CFMAC-IO) Artículos
Files in This Item:
File Description SizeFormat 
Melt.pdf1,7 MBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.