Giant enhancement of phonon-assisted one-photon excited frequency upconversion in a Nd3+-doped tellurite glass

dc.contributorUniversidade Federal de Pernambuco (UFPE)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade do Estado da Bahia (UNEB)
dc.contributorUniversidad Nacional Mayor de San Marcos-UNMSM
dc.date.accessioned2014-05-27T11:28:22Z
dc.date.available2014-05-27T11:28:22Z
dc.date.created2014-05-27T11:28:22Z
dc.date.issued2013-02-07
dc.identifierJournal of Applied Physics, v. 113, n. 5, 2013.
dc.identifier0021-8979
dc.identifierhttp://hdl.handle.net/11449/74567
dc.identifier10.1063/1.4789965
dc.identifierWOS:000314746200003
dc.identifier2-s2.0-84873679872
dc.identifier2-s2.0-84873679872.pdf
dc.description.abstractChanging the sample's temperature from 200 K to 535 K, we observed 670-fold enhancement of a phonon-assisted upconversion emission at ≈754 nm obtained from a Nd3+-doped tellurite glass excited by 5 ns laser pulses at 805 nm. A rate-equation model, including the relevant energy levels and temperature dependent transition rates, is proposed to describe the process. The results fit well with the data when one considers the nonradiative transitions contributing for the 754 nm luminescence are promoted by an effective phonon mode with energy of 700 cm-1. © 2013 American Institute of Physics.
dc.languageeng
dc.relationJournal of Applied Physics
dc.relation2.176
dc.relation0,739
dc.rightsAcesso restrito
dc.sourceScopus
dc.subjectFrequency up-conversion
dc.subjectNon-radiative transitions
dc.subjectPhonon mode
dc.subjectRate-equation models
dc.subjectTellurite glass
dc.subjectTemperature dependent
dc.subjectTransition rates
dc.subjectUp-conversion emission
dc.subjectGlass
dc.subjectNeodymium
dc.subjectTellurium compounds
dc.subjectPhonons
dc.titleGiant enhancement of phonon-assisted one-photon excited frequency upconversion in a Nd3+-doped tellurite glass
dc.typeArtículos de revistas


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