Tm3+-activated transparent oxy-fluoride glass ceramics: structural and spectroscopic properties (Comunicazione a convegno)

Type
Label
  • Tm3+-activated transparent oxy-fluoride glass ceramics: structural and spectroscopic properties (Comunicazione a convegno) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Alternative label
  • Mattarelli M., Tikhomirov V., Seddon A.B., Montagna M., Moser E., Chiasera A., Chaussedent S., Nunzi Conti G., Pelli S., Righini G.C., Zampedri L., Ferrari M. M. Mattarelli, M. Montagna, E. Moser, A. Chiasera, V. Tikhomirov, A.B. Seddon, S. Chaussedent, G. Nunzi Conti, S. Pelli, G.C. Righini, L. Zampedri, M. Ferrari (2003)
    Tm3+-activated transparent oxy-fluoride glass ceramics: structural and spectroscopic properties
    in X Conference on the Physics of Non-Crystalline Solids, Parma, Italia, 13-17 July 2003
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Mattarelli M., Tikhomirov V., Seddon A.B., Montagna M., Moser E., Chiasera A., Chaussedent S., Nunzi Conti G., Pelli S., Righini G.C., Zampedri L., Ferrari M. M. Mattarelli, M. Montagna, E. Moser, A. Chiasera, V. Tikhomirov, A.B. Seddon, S. Chaussedent, G. Nunzi Conti, S. Pelli, G.C. Righini, L. Zampedri, M. Ferrari (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • Book of abstracts of the X Conference on the Physics of Non-Crystalline Solids, p. O113 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • M. Mattarelli [a], V.K. Tikhomirov [b], A.B. Seddon [b], M. Montagna [a], E. Moser [a], A. Chiasera [a], S. Chaussedent [c], G. Nunzi Conti [d], S. Pelli [d], G.C. Righini [d], L. Zampedri [e], M. Ferrari [f] [a] Dipartimento di Fisica, Università di Trento and INFM, Via Sommarive 14, I-38050 Trento, Italy [b] Mechanical Materials Manufacturing Engineering and Management, Wolfson Building, University of Nottingham, Nottingham NG7 2RD, UK [c] POMA, UMR CNRS 6136 Université d'Angers, 2 Bld. Lavoisier 49045 Angers cédex 01, France [d] CNR-IFAC, Institute of Applied Physics 'Nello Carrara', Optoelectronics & Photonics Dept., Via Panciatichi 64, 50127 Firenze, Italy [e] Dip. di Ingegneria dei Materiali, Università di Trento, Via Mesiano 77, I-38050 Trento, Italy [f] CNR-IFN, Institute of Photonics and Nanotechnologies, CSMFO group, Via Sommarive 14, 38050 Trento, Italy (literal)
Titolo
  • Tm3+-activated transparent oxy-fluoride glass ceramics: structural and spectroscopic properties (literal)
Abstract
  • Ultra-transparent glass-ceramics activated with thulium ions were fabricated employing different heat treatments of precursor oxy-fluoride glass. The spectroscopic properties of the thulium ions, studied through UV-Vis-NIR absorption and luminescence spectroscopy, showed that most of the active ions were embedded in the crystalline phase. The size of nucleated nanocrystals, controlled by the temperature and time of annealing and measured by low-frequency-Raman spectroscopy, was found to range from 7 to 18 nm. From the absorption measurement we extracted the cross-sections of Tm3+ ions embedded in the crystalline and glassy phases. Judd-Ofelt analysis was carried out on precursor glass and crystal. Comparing calculated and experimental lifetimes, before and after the heat treatment procedure, we found that the ceramming increases the quantum efficiency of the Tm3+ electronic transitions. (literal)
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