Spectral and luminescence properties of Sm3+ doped sodium lead alumino borosilicate glasses

Add time:08/25/2019    Source:sciencedirect.com

Sm3+-doped sodium lead alumino borosilicate glasses with the composition 20Na2O-10PbO-(5-x)Al2O3-40B2O3-25SiO2:xSm2O3 have been prepared by the melt-quenching technique and are characterized through various physical parameters. Optical absorption spectrum from the near infrared to visible region is taken and the Judd-Ofelt analysis is carried out in order to determine Ωλ (λ = 2, 4, 6) parameters. Transition probabilities, branching ratios and radiative lifetime of 4G5/2 level of Sm3+ ions in the present glass under investigation have been predicted using different parameters. Photoluminescence spectra are used to analyze the luminescence behavior of the prepared glasses. Effect of change in concentration of Sm3+ ions on the luminescence properties is investigated. Branching ratios, stimulated emission cross-section are estimated from the luminescence spectra. CIE chromaticity coordinates are calculated to evaluate the glass performance on color luminescence. The results are analyzed for potential application of the title glass as a new laser material.

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