@prefix prodottidellaricerca: . @prefix istituto: . @prefix prodotto: . istituto:CDS036 prodottidellaricerca:prodotto prodotto:ID202539 . @prefix pubblicazioni: . @prefix unitaDiPersonaleEsterno: . unitaDiPersonaleEsterno:ID1512 pubblicazioni:autoreCNRDi prodotto:ID202539 . @prefix modulo: . modulo:ID7756 prodottidellaricerca:prodotto prodotto:ID202539 . @prefix rdf: . @prefix retescientifica: . prodotto:ID202539 rdf:type retescientifica:ProdottoDellaRicerca , prodotto:TIPO1305 . @prefix rdfs: . prodotto:ID202539 rdfs:label "\\\"Er3+ Local Structure and its optical properties in ZnO-PbO Tellurite glasses\\\" (Abstract/Comunicazione in atti di convegno)"@en . @prefix xsd: . prodotto:ID202539 pubblicazioni:anno "2012-01-01T00:00:00+01:00"^^xsd:gYear . @prefix skos: . prodotto:ID202539 skos:altLabel "
R.K. Ramamoorthy, A.K. Bhatnagar, F. Rocca, G. Dalba, M. Mattarelli, M. Montagna (2012)
\"Er3+ Local Structure and its optical properties in ZnO-PbO Tellurite glasses\"
in XIII International Conference on the Physics of Non-Crystalline Solids, Wuhan, Hubei, China, 16-20/09/2012
"^^rdf:HTML ; pubblicazioni:autori "R.K. Ramamoorthy, A.K. Bhatnagar, F. Rocca, G. Dalba, M. Mattarelli, M. Montagna"^^xsd:string ; pubblicazioni:altreInformazioni "Booklet of Abstract"^^xsd:string ; skos:note "Abstract"^^xsd:string ; pubblicazioni:affiliazioni "Department of Physics, University of Trento, 38123 Povo (Trento) Italy;\nSchool of Physics, University of Hyderabad, Hyderabad-500 046, India;\nSchool of Engineering Sciences & Technology, University of Hyderabad, Hyderabad - 500 046, India;\nIFN-CNR, Institute for Photonics and Nanotechnologies, Unit \\\"FBK-Photonics\\\" of Trento, 38123 Povo (Trento) Italy"^^xsd:string ; pubblicazioni:titolo "\\\"Er3+ Local Structure and its optical properties in ZnO-PbO Tellurite glasses\\\""^^xsd:string ; prodottidellaricerca:abstract "Tellurite glasses are important in optical applications because of their high refractive index. Optical spectroscopy and X-ray Absorption Fine Structure spectroscopy (XAFS) studies allows us to report on optical properties and structural parameters of Erbium-doped lead tellurite (TZPE) glasses [(70TeO2 - (30-x)ZnO - xPbO)]0.99 (Er2O3)0.01, where x = 5, 10, 15, 20. The structural information by EXAFS for the first shell of oxygen atoms around Er3+ give a constant distance of 2.34 \u00C5, while coordination number (N) and Debye Waller factor (DW) were found to be ~6.5 and ~0.015 \u00C52 respectively, slightly increasing for x >= 10. Next nearest shells are difficult to quantify, due to high static disorder, indicating the absence of preferential bonds. Optical spectroscopy shows that the transition intensities of Er3+ ions decrease with increase of PbO content. We have performed the Judd-Ofelt (JO) analysis to correlate the local structure of Er3+ with its influence on the radiative properties. The JO analysis shows that the local asymmetry and basicity of Er3+ ions in these glasses decreases with increase of PbO content, correspondingly with the observed reduction in transition intensities of Er3+ ions. This decreasing intensity of characteristic erbium transitions shows that the oscillator (electric dipole transition) strength reduces as the PbO content increases." ; prodottidellaricerca:prodottoDi modulo:ID7756 , istituto:CDS036 ; pubblicazioni:autoreCNR unitaDiPersonaleEsterno:ID1512 . @prefix parolechiave: . prodotto:ID202539 parolechiave:insiemeDiParoleChiave . parolechiave:insiemeDiParoleChiaveDi prodotto:ID202539 .