Annapurna, K and Dwivedi, R N and Kumar, A and Chaudhuri, A K and Buddhudu, S (2000) Temperature dependent luminescence characteristics of Sm3+-doped silicate glass. Spectrochemica Acta Part A-Molecular and Biomolecular Spectroscopy, 56 (1). pp. 103-109. ISSN 1386-1425

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Abstract

We report here on the optical characterisation of Sm3+ (5 wt%): SiO2 + Al2O3 + Li2O + Na2O + MgO glass from the measurements of optical absorption spectra (at 300 K), total luminescence spectra (10-300 K) and fluorescence lifetimes (10-300 K) of the prominent emission transitions of the Sm3+ ions. Besides its spectral properties, physical and nonlinearity characterising property parameters have also been computed to understand the optical dispersive power of this glass. By the application of Judd-Ofelt parameters (Omega(lambda)) of the measured absorption spectrum, the radiative transition probability factors (A) and stimulated emission cross-section (sigma(p)(E)) of the observed fluorescent levels have been analysed. Both emission intensity and measured lifetimes of the prominent luminescent transition ((4)G(5/2) --> H-6(7/2)) concerning Sm3+-glass has been showing a descending trend with the rise in temperature with N-2-laser (337.1 nm) as the source of excitation.

Item Type:	Article
Uncontrolled Keywords:	luminescence; Sm3+-glass; silicate glass
Subjects:	Glass
Divisions:	Glass
Depositing User:	Mrs Chandana Patra
Date Deposited:	09 Feb 2012 10:35
Last Modified:	27 Mar 2016 13:14
URI:	http://cgcri.csircentral.net/id/eprint/715

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