Emission analysis of RE3+ (RE = Sm, Dy):B2O3-TeO2-Li2O-AlF3 glasses

• Published in: Luminescence (Chichester, England) Vol. 28; no. 2; pp. 162 - 168
• Main Authors: Raju, C Nageswara, Sailaja, S, Kumari, S Pavan, Dhoble, SJ, Kumar, V Ramesh, Ramanaiah, MV, Reddy, B Sudhakar
• Format: Journal Article
• Language: English
• Published: Chichester, UK John Wiley & Sons, Ltd 01-03-2013; Wiley Subscription Services, Inc
• Subjects: absorption; Aluminum Compounds - chemistry; Boron Compounds - chemistry; Dy3+:LiAlFBT glasses; Dysprosium - chemistry; emission; Fluorides - chemistry; Glass - chemistry; Lithium - chemistry; Polymers - chemical synthesis; Polymers - chemistry; Samarium - chemistry; Sm3; Sm3+, Dy3+:LiAlFBT glasses; Spectrum Analysis; Tellurium - chemistry
• ISSN: 1522-7235; 1522-7243
• DOI: 10.1002/bio.2356

ABSTRACT
This article reports on the optical properties of 0.5% mol of Sm3+, Dy3+ ion‐doped B2O3‐TeO2‐Li2O‐AlF3 (LiAlFBT) glasses. The glass samples were characterized by optical absorption and emission spectra. Judd‐Ofelt theory was applied to analyze the optical absorption spectra and calculate the intensity parameters and radiative properties of the emission transitions. The emission spectra of Sm3+ and Dy3+:LiAlFBT glasses showed a bright reddish‐orange emission at 598 nm (4G5/2 → 6H7/2) and an intense yellow emission at 574 nm (4F9/2 → 6H13/2), respectively. Full width at half maximum (FWHM), stimulated emission cross section, gain bandwidth and optical gain values were also calculated to extend the applications of the Sm3+ and Dy3+:LiAlFBT glasses. Copyright © 2012 John Wiley & Sons, Ltd.