English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/65393
Share/Impact:
Statistics
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:

Title

Correlation of the refractive index change at the surface and inside phosphate glass upon femtosecond laser irradiation

AuthorsPuerto, D. ; Siegel, Jan ; Ferrer, Andrés; Hernández Rueda, Javier ; Solís Céspedes, Javier
Issue Date2012
PublisherOptical Society of America
CitationJournal of the Optical Society of America B: Optical Physics 29: 2665-2668 (2012)
AbstractA study of the surface modification induced by single femtosecond laser pulses in phosphate glass has revealed surface swelling at fluences just below the ablation threshold. This behavior is different from that observed in other dielectric materials. Optical micrographs obtained with monochromatic light show a pattern of Newton rings within the swollen region whose number scales inversely with the illumination wavelength, acting as a micro Fabry-Perot etalon. The swollen surface layer has lower refractive index than the bulk glass and can reach a maximum thickness of 820 nm. We relate these findings to results obtained during subsurface waveguide writing inside phosphate glass, which also show a refractive index decrease at energies near threshold for waveguide fabrication. We have identified low density free-electron plasma to be the trigger of the refractive index change. © 2012 Optical Society of America.
URIhttp://hdl.handle.net/10261/65393
DOI10.1364/JOSAB.29.002665
Identifiersdoi: 10.1364/JOSAB.29.002665
issn: 0740-3224
Appears in Collections:(CFMAC-IO) Artículos
Files in This Item:
File Description SizeFormat 
Puerto.pdf710,75 kBAdobe PDFThumbnail
View/Open
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.