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Title

Site-selective spectroscopy and infrared-to-visible upconversion in a Nd3+-doped Pb5Al3F19 crystal

AuthorsFernández, Joaquín CSIC ORCID; Sanz, M. CSIC ORCID; Mendioroz, A.; Balda, Rolindes CSIC ORCID; Chaminade, J. P.; Ravez, J.; Lacha, L. M.; Voda, M.; Arriandiaga, M. A.
Issue Date2001
PublisherElsevier
CitationJournal of Alloys and Compounds 323–324: 267-272 (2001)
AbstractIn this work, we analyzed the spectroscopic features of the absorption and emission of Nd3+ in a fluoroaluminate Pb5Al3F19 crystal. Two main crystal field sites were identified for the rare earth in this crystal which may correspond to the two different crystallographic sites of Pb2+. Infrared-to-visible and -ultraviolet upconversion, under continuous wave and pulsed laser excitation, was observed at room and low temperatures. Analysis of the steady-state excitation spectra and of the decays of the upconverted emissions shows that the most likely mechanism for the observed upconversion emissions is an energy-transfer upconversion (ETU) process.
Publisher version (URL)https://doi.org/10.1016/S0925-8388(01)01029-5
URIhttp://hdl.handle.net/10261/225975
DOIhttp://dx.doi.org/10.1016/S0925-8388(01)01029-5
ISSN0925-8388
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