Simultaneous time-space resolved reflectivity and interferometric measurements of dielectrics excited with femtosecond laser pulses

13 pags., 7 figs., 1 tab.

Detalles Bibliográficos
Autores: García-Lechuga, Mario, Haahr-Lillevang, L., Siegel, Jan, Balling, P., Guizard, S., Solís Céspedes, Javier
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/163983
Acceso en línea:http://hdl.handle.net/10261/163983
Access Level:acceso abierto
id ES_3dd2ea1aa4fc45a1bf5031ae34e5a32d
oai_identifier_str oai:digital.csic.es:10261/163983
network_acronym_str ES
network_name_str España
repository_id_str
spelling Simultaneous time-space resolved reflectivity and interferometric measurements of dielectrics excited with femtosecond laser pulsesGarcía-Lechuga, MarioHaahr-Lillevang, L.Siegel, JanBalling, P.Guizard, S.Solís Céspedes, Javier13 pags., 7 figs., 1 tab.Simultaneous time-and-space resolved reflectivity and interferometric measurements over a temporal span of 300 ps have been performed in fused silica and sapphire samples excited with 800 nm, 120 fs laser pulses at energies slightly and well above the ablation threshold. The experimental results have been simulated in the frame of a multiple-rate equation model including light propagation. The comparison of the temporal evolution of the reflectivity and the interferometric measurements at 400 nm clearly shows that the two techniques interrogate different material volumes during the course of the process. While the former is sensitive to the evolution of the plasma density in a very thin ablating layer at the surface, the second yields an averaged plasma density over a larger volume. It is shown that self-trapped excitons do not appreciably contribute to carrier relaxation in fused silica at fluences above the ablation threshold, most likely due to Coulomb screening effects at large excited carrier densities. For both materials, at fluences well above the ablation threshold, the maximum measured plasma reflectivity shows a saturation behavior consistent with a scattering rate proportional to the plasma density in this fluence regime. Moreover, for both materials and for pulse energies above the ablation threshold and delays in the few tens of picoseconds range, a simultaneous >low reflectivity> and >low transmission> behavior is observed. Although this behavior has been identified in the past as a signature of femtosecond laser-induced ablation, its origin is alternatively discussed in terms of the optical properties of a material undergoing strong isochoric heating, before having time to substantially expand or exchange energy with the surrounding media.This work has been partly funded by Laserlab-Europe (Grant Agreement No. 284464, EU’s Seventh Framework Programme, Project No. SLIC002014), by the Spanish Ministry of Economy and Competiveness (Project No. TEC2014-52642- C2-1-R) as well as by the Danish Council for Independent Research | Natural Sciences. M.G.-L. acknowledges the FPU (Formación de Profesorado Universitario) Grant No. AP2012- 0217 awarded by the Spanish Ministry of Education.Peer ReviewedAmerican Physical SocietyMinisterio de Economía y Competitividad (España)European CommissionDanish Council for Independent ResearchConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2018201820172018info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/163983reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/FP7/284464info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/TEC2014-52642-C2-1-Rhttps://doi.org/10.1103/PhysRevB.95.214114Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1639832026-05-22T06:33:51Z
dc.title.none.fl_str_mv Simultaneous time-space resolved reflectivity and interferometric measurements of dielectrics excited with femtosecond laser pulses
title Simultaneous time-space resolved reflectivity and interferometric measurements of dielectrics excited with femtosecond laser pulses
spellingShingle Simultaneous time-space resolved reflectivity and interferometric measurements of dielectrics excited with femtosecond laser pulses
García-Lechuga, Mario
title_short Simultaneous time-space resolved reflectivity and interferometric measurements of dielectrics excited with femtosecond laser pulses
title_full Simultaneous time-space resolved reflectivity and interferometric measurements of dielectrics excited with femtosecond laser pulses
title_fullStr Simultaneous time-space resolved reflectivity and interferometric measurements of dielectrics excited with femtosecond laser pulses
title_full_unstemmed Simultaneous time-space resolved reflectivity and interferometric measurements of dielectrics excited with femtosecond laser pulses
title_sort Simultaneous time-space resolved reflectivity and interferometric measurements of dielectrics excited with femtosecond laser pulses
dc.creator.none.fl_str_mv García-Lechuga, Mario
Haahr-Lillevang, L.
Siegel, Jan
Balling, P.
Guizard, S.
Solís Céspedes, Javier
author García-Lechuga, Mario
author_facet García-Lechuga, Mario
Haahr-Lillevang, L.
Siegel, Jan
Balling, P.
Guizard, S.
Solís Céspedes, Javier
author_role author
author2 Haahr-Lillevang, L.
Siegel, Jan
Balling, P.
Guizard, S.
Solís Céspedes, Javier
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
European Commission
Danish Council for Independent Research
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description 13 pags., 7 figs., 1 tab.
publishDate 2017
dc.date.none.fl_str_mv 2017
2018
2018
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/163983
url http://hdl.handle.net/10261/163983
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/FP7/284464
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/TEC2014-52642-C2-1-R
https://doi.org/10.1103/PhysRevB.95.214114
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869406471727349760
score 15,811543

Similares en LA Referencia