Concentration dependence of energy transfer from Bi3+ to Nd3+ in germanate glass

Y. Kalisky*, R. Reisfeld, J. S. Bodenheimer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Energy transfer probabilities and efficiencies from Bi3+ to Nd3+ were calculated from the decrease of intensities and lifetimes of Bi3+ as a function of concentration of Nd3+ and from the increase of Nd3+ luminescence as a function of Nd3+ concentration. The energy transfer rate obtained by the two methods is (3.7 ± 0.2) × 106 sec -1 M -1. Energy transfer was also measured versus concentration of Bi3+ ions by using lifetime measurements, and it was found that the transfer efficiency is maximum at 0.3 wt.% Bi3+ in the measured concentration range of Nd3+ from 0.5-1.5 wt.%. The contribution of the radiative transfer was established from the dip in the emission spectrum of Bi3+. It is suggested that the sensitization of Nd3+ luminescence by Bi3+ may increase the pumping range of the Nd3+ glass laser for mini lasers.

Original languageEnglish
Pages (from-to)249-256
Number of pages8
JournalJournal of Non-Crystalline Solids
Volume44
Issue number2-3
DOIs
StatePublished - Jun 1981

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