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Vibrational modes and local order in permanently densified silica glasses: Femtosecond and Raman spectroscopy study

hal.structure.identifierCentre de physique moléculaire optique et hertzienne [CPMOH]
dc.contributor.authorBURGIN, Julien
hal.structure.identifierCentre de physique moléculaire optique et hertzienne [CPMOH]
dc.contributor.authorGUILLON, C.
hal.structure.identifierCentre de physique moléculaire optique et hertzienne [CPMOH]
dc.contributor.authorLANGOT, P.
hal.structure.identifierLaboratoire de Spectrométrie Ionique et Moléculaire [LASIM]
dc.contributor.authorVALLÉE, F.
hal.structure.identifierLaboratoire des colloïdes, verres et nanomatériaux [LCVN]
dc.contributor.authorHEHLEN, B.
hal.structure.identifierLaboratoire des colloïdes, verres et nanomatériaux [LCVN]
dc.contributor.authorFORET, M.
dc.date.issued2008-11-17
dc.identifier.issn1098-0121
dc.description.abstractEnThe D1 and D2 vibrational ring modes of normal and densified silica are investigated using a time resolved pump-probe technique and spontaneous Raman spectroscopy. The vibrational response function of both techniques is derived and compared to the experimental results obtained on three samples of silica of increasing density. Comparison of the amplitudes of the time- and frequency-domain responses reveals a much larger increase in concentration of three-membered rings as compared to four-membered ones upon densification. In addition, measurements of the Raman-scattering intensity in SiO2 also provide a mean to identify bending motions and to estimate the variation of the average Si-O-Si bond angle in densified samples.
dc.language.isoen
dc.publisherAmerican Physical Society
dc.title.enVibrational modes and local order in permanently densified silica glasses: Femtosecond and Raman spectroscopy study
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevB.78.184203
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Autre [cond-mat.other]
bordeaux.journalPhysical Review B: Condensed Matter and Materials Physics (1998-2015)
bordeaux.page184203
bordeaux.volume78
bordeaux.peerReviewedoui
hal.identifierhal-00339618
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00339618v1
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