Dielectric hole burning spectroscopy of supercooled liquids

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dc.contributor.authorBöhmer, Roland
dc.contributor.authorSchiener, B.
dc.contributor.authorChamberlin, R. V.
dc.contributor.authorDiezemann, G.
dc.date.accessioned2008-06-18T11:01:53Z
dc.date.available2008-06-18T11:01:53Z
dc.date.issued1997-11-15
dc.description.abstractThe nonexponential response of propylene carbonate and glycerol near their glass transitions could be selectively altered using nonresonant spectral hole burning (NSHB) experiments. This observation provides evidence of the existence of a distribution of relaxation times in these supercooled liquids. NSHB is based on a pump, wait, and probe scheme and uses low-frequency large amplitude electrical fields to modify the dielectric relaxation. The temporal evolution of the polarization of the sample is then measured subsequent to a small voltage step. By variation of a recovery time inserted between pump and probe, the refilling of the spectral features could be monitored and was found to take place on the time scale set by the peak in the distribution. The recovery time and pump frequency dependences of the spectral modifications were successfully simulated using a set of coupled rate equations.en
dc.identifier.citationSchiener, B.; Chamberlin, R. V.; Diezemann, G.; Böhmer, R.: Dielectric hole burning spectroscopy of supercooled liquids. In: Journal of Chemical Physics Jg. 107(1997), S. 7746-7761, doi:de
dc.identifier.doi10.1063/1.475089
dc.identifier.urihttp://hdl.handle.net/2003/25710
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-3221
dc.identifier.urlhttp://dx.doi.org/10.1063/1.475089
dc.language.isoende
dc.publisherAmerican Institute of Physicsen
dc.rights©1997 American Institute of Physicsen
dc.subjectpolymersen
dc.subjectorganic compoundsen
dc.subjectoptical hole burningen
dc.subjectdielectric relaxationen
dc.subjectglass transitionen
dc.subject.ddc530
dc.titleDielectric hole burning spectroscopy of supercooled liquidsen
dc.typeTextde
dc.type.publicationtypearticlede
dcterms.accessRightsrestricted

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