Repository logo
 
Publication

Morphology and structure of particles produced by femtosecond laser ablation of fused silica

2016-04Journal article Restricted access
Simple item page
dc.contributor.authorSharma, S. P.
dc.contributor.authorOliveira, Vitor
dc.contributor.authorVilar, Rui
dc.date.accessioned2016-07-04T11:01:18Z
dc.date.available2016-07-04T11:01:18Z
dc.date.issued2016-04
dc.description.abstractThe aim of the present work was to study the morphology and structure of the nanoparticles produced by femtosecond laser ablation of fused silica. Ultrashort laser pulses of 1030 nm wavelength and 550 fs duration were tightly focused by a high numerical aperture microscope objective at the surface of fused silica samples while scanning the sample in relation to the stationary laser beam. Laser tracks were created with pulse energies in the range 5-100 mu J, resulting in ablation debris of different morphologies. The debris were examined by scanning and transmission electron microscopy for their morphology and crystal structure in relation to the incident laser pulse energy. Ejected particles with sizes ranging from a few nanometers to a few microns were found. Their morphologies can be broadly classified into three categories: very fine round nanoparticles with diameters lower than 20 nm, nanoparticles with intermediate sizes between 50 and 200 nm, and big irregular particles with typical size between 0.5 and 1.5 mu m. The fine nanoparticles of the first category are predominantly observed at higher pulse energies and tend to aggregate to form web-like and arborescent-like structures. The nanoparticles with intermediate sizes are observed for all pulse energies used and may appear isolated or aggregated in clusters. Finally, the larger irregular particles of the third category are observed for all energies and appear normally isolated.pt_PT
dc.identifier.citationSHARMA, S. P.; OLIVEIRA, Vítor Manuel Barbas de; VILAR, Rui - Morphology and structure of particles produced by femtosecond laser ablation of fused silica. Applied physics. A, Materials science & processing. ISSN 0947-8396. Vol. 122, Nr. 4, S 261, (2016).pt_PT
dc.identifier.doi10.1007/s00339-016-9859-3pt_PT
dc.identifier.issn0947-8396
dc.identifier.issn1432-0630
dc.identifier.urihttp://hdl.handle.net/10400.21/6288
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationPTDC/FIS/102 127/2008pt_PT
dc.relationPTDC/FIS/102 127/2008pt_PT
dc.relationPERIODIC SELF-ORGANISED NANOSTRUCTURES PRODUCED IN DIELECTRIC MATERIALS BY ULTRAFAST LASER DIRECT WRITING METHODS
dc.relation.ispartofseries261;
dc.relation.publisherversionhttp://link.springer.com/article/10.1007/s00339-016-9859-3pt_PT
dc.subjectGold nanoparticlespt_PT
dc.subjectLiquidpt_PT
dc.subjectGlasspt_PT
dc.subjectFragmentationpt_PT
dc.subjectGenerationpt_PT
dc.subjectPulsespt_PT
dc.subjectMediapt_PT
dc.subjectWaterpt_PT
dc.subjectAirpt_PT
dc.titleMorphology and structure of particles produced by femtosecond laser ablation of fused silicapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitlePERIODIC SELF-ORGANISED NANOSTRUCTURES PRODUCED IN DIELECTRIC MATERIALS BY ULTRAFAST LASER DIRECT WRITING METHODS
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F78871%2F2011/PT
oaire.citation.issue4pt_PT
oaire.citation.volume122pt_PT
person.familyNameOliveira
person.givenNameVitor
person.identifier.ciencia-idDA1C-25BD-5974
person.identifier.orcid0000-0002-1757-4524
person.identifier.ridA-3058-2009
person.identifier.scopus-author-id7006105706
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication269ff9af-427f-4d1d-949c-cd77cd386e9f
relation.isAuthorOfPublication.latestForDiscovery269ff9af-427f-4d1d-949c-cd77cd386e9f
relation.isProjectOfPublicationaa4fa258-45f9-45e9-9130-7814db16145a
relation.isProjectOfPublication.latestForDiscoveryaa4fa258-45f9-45e9-9130-7814db16145a

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Morphology and structure of particles produced by femtosecond.pdf
Size:
1.8 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ISEL - Física - Artigos