Frequency upconversion involving triads and quartets of ions in a Pr3+/Nd3+ codoped fluoroindate glass

dc.contributorUniversidade Federal de Pernambuco (UFPE)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.creatorFalcão-Filho, Edilson L.
dc.creatorAraújo, Cid B. de
dc.creatorMessaddeq, Younes [UNESP]
dc.date2014-05-27T11:20:30Z
dc.date2014-05-27T11:20:30Z
dc.date2002-09-15
dc.date.accessioned2023-09-12T07:20:18Z
dc.date.available2023-09-12T07:20:18Z
dc.identifierhttp://dx.doi.org/10.1063/1.1501757
dc.identifierJournal of Applied Physics, v. 92, n. 6, p. 3065-3070, 2002.
dc.identifier0021-8979
dc.identifierhttp://hdl.handle.net/11449/130627
dc.identifier10.1063/1.1501757
dc.identifier2-s2.0-84861434224
dc.identifier2-s2.0-84861434224.pdf
dc.identifier2998503841917815
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8779931
dc.descriptionFrequency upconversion (UC) processes involving energy transfer (ET) among Nd 3+ and Pr 3+ ions in a fluoroindate glass are reported. In a first experiment, the excitation of Pr 3+ [transition 3H 4→ 1D 2] and of Nd 3+ [transition 4I 9/2→( 2G 7/2+ 4G 5/2)] was achieved with a dye laser operating in the 575-590 nm range. In a second experiment, the Nd 3+ ions were excited with the second harmonic of a Nd: YAG laser at 532 nm. The ET processes leading to UC in both experiments were studied by monitoring the blue fluorescence decay at 480 nm due to the transition 3P 0→ 3H 4 in Pr 3+. In the more relevant UC process, quartets of ions (Nd-Nd-Pr-Pr) are excited due to absorption of three laser photons by two Nd 3+ ions which transfer their energy to two Pr 3+ ions. Each Pr 3+ ion promoted to the 3P 0 level decays to the ground state emitting one photon in the blue region. This conclusion was achieved investigating the dependence of the UC fluorescence intensity as a function of laser intensity, samples concentrations, and temporal behavior of the UC signal. Other UC processes involving nonisoionic groups of three ions are also reported. © 2002 American Institute of Physics.
dc.descriptionDepartamento de Física Universidade Federal de Pernambuco, 50670-901 Recife, PE
dc.descriptionInstituto de Química Universidade do Estado de São Paulo, 14800-900 Araraquara, SP
dc.format3065-3070
dc.languageeng
dc.relationJournal of Applied Physics
dc.relation2.176
dc.relation0,739
dc.rightsAcesso restrito
dc.sourceScopus
dc.subjectBlue fluorescence
dc.subjectCo-doped
dc.subjectET process
dc.subjectFluorescence intensities
dc.subjectFluoroindate glass
dc.subjectFrequency up-conversion
dc.subjectLaser intensities
dc.subjectLaser photons
dc.subjectND : YAG lasers
dc.subjectSecond harmonics
dc.subjectTemporal behavior
dc.subjectDye lasers
dc.subjectEnergy transfer
dc.subjectExperiments
dc.subjectGlass
dc.subjectHigh energy physics
dc.subjectNeodymium
dc.subjectNeodymium lasers
dc.subjectPhotons
dc.subjectIons
dc.titleFrequency upconversion involving triads and quartets of ions in a Pr3+/Nd3+ codoped fluoroindate glass
dc.typeArtigo


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