Emission analysis of RE 3+ (RE = Sm, Dy):B 2 O 3 ‐TeO 2 ‐Li 2 O‐AlF 3 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: 01-03-2013
• ISSN: 1522-7235; 1522-7243
• DOI: 10.1002/bio.2356

ABSTRACT
This article reports on the optical properties of 0.5% mol of Sm
3+
, Dy
3+
ion‐doped B
2
O
3
‐TeO
2
‐Li
2
O‐AlF
3
(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 Sm
3+
and Dy
3+
:LiAlFBT glasses showed a bright reddish‐orange emission at 598 nm (
4
G
5/2
 → 
6
H
7/2
) and an intense yellow emission at 574 nm (
4
F
9/2
 → 
6
H
13/2
), 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 Sm
3+
and Dy
3+
:LiAlFBT glasses. Copyright © 2012 John Wiley & Sons, Ltd.