Abstract

The present work reports the effect of concentration on photoluminescence properties of Sm3+ ions doped lithium fluoroborate (LFB) glasses by using the absorption, emission and decay measurements. The Judd-Ofelt theory has been used to evaluate the three Judd-Ofelt intensity parameters and calculated oscillator strengths. LFBSm glasses exhibit intense reddish-orange emission when excited with 405 nm wavelength. Concentration quenching has been noticed beyond 1.0 mol% of Sm3+ ion concentration. The decay curves of 4G5/2 level exhibited single exponential at lower concentrations and turn to non-exponential at higher concentrations. The evaluated radiative properties suggest that the 4G5/26H7/2 (602 nm) transition is responsible for reddish – orange luminescence which might be used in the development of visible lasers for photonic applications.

© 2012 Optical Society of America

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