Fluorescence dynamics in 1D systems with phonon-assisted energy transfer

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dc.contributor.authorAvgin, I
dc.contributor.authorHuber, DL
dc.date.accessioned2019-10-27T18:24:46Z
dc.date.available2019-10-27T18:24:46Z
dc.date.issued1999
dc.departmentEge Üniversitesien_US
dc.description12th International Conference on Dynamical Proceesses in Excited States of Solids (DPC 99) -- MAY 23-27, 1999 -- HUMACAO, PUERTO RICOen_US
dc.description.abstractWe report the results of a theoretical study of fluorescence dynamics in quasi-one-dimensional systems with phonon-assisted energy transfer between nearest neighbors. It is assumed that the phonons are three-dimensional, the one-phonon mechanism is dominant and the wavelength of the phonon involved is long in comparison with the separation between nearest neighbors. A combination of analytical and numerical techniques is used in the analysis of the decay of the narrow-line component observed in fluorescence line narrowing studies. A random distribution of single-ion transition frequencies is postulated, with no correlation between sites, and the variance of the distribution is taken to be small in comparison with (kT/(h) over bar)(2). It is found that the narrow-line fluorescence decays asymptotically as t(-1/3) rather than as t(-1/2). as would be the case if the energy transfer were diffusive at long times. It is shown that the subdiffusive dynamics reflects a singular behavior in the limiting form of the distribution of transfer rates that is not present when the energy transfer involves two-phonon processes. Numerical results are presented for the early stages of the decay for rectangular distributions of transition frequencies with various values of the ratio of kT/(h) over bar sigma, where sigma(2) is the variance of the distribution. (C) 1999 Elsevier Science B.V. All rights reserved.en_US
dc.description.sponsorshipPuerto Rico ESPCoR Off, Natl Sci Fdn, Amer Assoc Advancement Sci, Univ Puerto Rico Rio Piedras, Univ Puerto Rico Mayaguez, Spectra Phys Lasers Inc, Elsevier Scien_US
dc.identifier.doi10.1016/S0022-2313(99)00097-6
dc.identifier.endpage197en_US
dc.identifier.issn0022-2313
dc.identifier.issn0022-2313en_US
dc.identifier.startpage193en_US
dc.identifier.urihttps://doi.org/10.1016/S0022-2313(99)00097-6
dc.identifier.urihttps://hdl.handle.net/11454/36236
dc.identifier.volume83-4en_US
dc.identifier.wosWOS:000083914400034en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofJournal of Luminescenceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectenergy transferen_US
dc.subjectfluorescenceen_US
dc.subjectone dimensionen_US
dc.titleFluorescence dynamics in 1D systems with phonon-assisted energy transferen_US
dc.typeArticleen_US

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