Site selective spectroscopy of Pr3+ ions in sodium B-alumina crystals (Articolo in rivista)

Type
Label
  • Site selective spectroscopy of Pr3+ ions in sodium B-alumina crystals (Articolo in rivista) (literal)
Anno
  • 1994-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1051/jp4:19944113 (literal)
Alternative label
  • Mariotto, G. 1, Tietz, F. 1, Zanghellini, E. 1, Ferrari, M. 2 (1994)
    Site selective spectroscopy of Pr3+ ions in sodium B-alumina crystals
    in Journal de physique. IV
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Mariotto, G. 1, Tietz, F. 1, Zanghellini, E. 1, Ferrari, M. 2 (literal)
Pagina inizio
  • 473 (literal)
Pagina fine
  • 476 (literal)
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  • 4 (literal)
Rivista
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  • 4 (literal)
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  • 4 (literal)
Note
  • Scopu (literal)
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  • 1 Università di Trento, Dipartimento di Fisica, 38050 Povo (Trento), Italy; 2 Centro CNR di Fisica degli Stati Aggregati e Impianto Ionico, 38050 Povo (Trento), Italy (literal)
Titolo
  • Site selective spectroscopy of Pr3+ ions in sodium B-alumina crystals (literal)
Abstract
  • We report on the results of a low-temperature optical spectroscopy study of Pr3+-exchanged sodium ?-alumina single crystals (Na+/Pr3+ ?-Al2O3), containing different amounts of luminescent ions, in which excitation and fluorescence spectra have been carried out in ? and ? polarization. The 3P0->3H4 emission spectra, obtained under broad band excitation, show an intriguing structure consisting of several components even with crystals containing low Pr3+ concentrations. The excitation spectra indicate the presence of at least two sets of different sites, available to Pr3+ in the conduction place of ?-alumina. Independently of the crystal composition, a quite satisfactory site-selective emission from each sets of centres has been achieved under cw excitation of the 465.8 nm and 476.5 nm lines of an Ar+ ion laser. (literal)
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