Concentration dependence of the infrared photoluminescence of Pr3+ in fluoroindate glasses

Infrared photoluminescence properties are investigated for Pr3+ containing fluoroindate glasses with formula (mol% compositions) (99-x)[40InF3–20SrF2–20BaF2–20ZnF2]:xPrF3 (x= 0.1, 0.2, 0.5, 1.0 and 2.0 mol%). Different mechanisms of population and quenching for Pr3+ 1D2 and 1G4 levels are shown from...

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Bibliographic Details
Main Author: Ribeiro, Sidney J. L. (author)
Other Authors: Galleani, Gustavo (author), Fortes, Luis (author), Manzani, Danilo (author), Ferreira, Rute A. S. (author), Carlos, Luis D. (author)
Format: conferenceObject
Language:eng
Published: 1000
Subjects:
Fluoroindate glasses
Praseodymium
Infrared emission
Down-shifting
Down-conversion
Online Access:http://hdl.handle.net/10773/18287
Country:Portugal
Oai:oai:ria.ua.pt:10773/18287
Description
Summary:Infrared photoluminescence properties are investigated for Pr3+ containing fluoroindate glasses with formula (mol% compositions) (99-x)[40InF3–20SrF2–20BaF2–20ZnF2]:xPrF3 (x= 0.1, 0.2, 0.5, 1.0 and 2.0 mol%). Different mechanisms of population and quenching for Pr3+ 1D2 and 1G4 levels are shown from photoluminescence (PL), photoluminescence excitation (PLE) and decay time values. Cross relaxation processes are put in evidence in different ways for the population of excited levels as a function of the Pr3+ concentration, depending on the excitation wavelength. Different dependences on Pr3+ concentrations are observed for 1D2 and 1G4 levels.

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