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Green fluorescence of terbium ions in lithium fluoroborate glasses for fibre lasers and display devices

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Abstract

In this paper, for the first time, the visible fluorescence properties, resonance energy transfer mechanism responsible for non-radiative decay rates of 5D47F5 transition and also quenching of fluorescence intensity of the 5D37F5 transition of various concentrations of Tb3+ ions in LBZLFB glasses are reported. Optical absorption, fluorescence spectra and quantum efficiencies are measured and analysed. Green fluorescence related to 5D47F5 (548 nm) transition is registered under excitation of 378 nm of Tb3+ ions. Based on excitation and fluorescence measurements, several spectroscopic parameters for Tb3+ ions are examined as a function of concentration by Judd–Ofelt theory to judge the suitability of studied glasses for display devices and fibre lasers.

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Acknowledgements

BDPR is thankful to the Department of Atomic Energy-Board of Research in Nuclear Sciences (DAE-BRNS), Government of India, INDIA, for providing financial assistance to carry out this work; vide reference number: 34/14/06/2014; dated: 21-04-2014. We also acknowledge the Sophisticated Analytical Instrument Facility (SAIF), Indian Institute of Technology, Chennai, for extending instrumental facilities.

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Correspondence to B DEVA PRASAD RAJU.

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GRD and CMR contributed equally to this work.

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DILLIP, G.R., REDDY, C.M., RAJESH, M. et al. Green fluorescence of terbium ions in lithium fluoroborate glasses for fibre lasers and display devices. Bull Mater Sci 39, 711–717 (2016). https://doi.org/10.1007/s12034-016-1192-0

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  • DOI: https://doi.org/10.1007/s12034-016-1192-0

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