• Buddhudu, S.
• El Mallawany, R.
• Ali, N.
• Hussain, Ns
• Santos, Jd
• Hungerford, G.
• Gomes, Mjm
• Lopes, Ma

Abstract

This paper reports on the development and spectral analysis of Sm3+ (1.0%) and Dy3+ (1.0%) doped lithium-boro-tellurite glasses. A bright orange ((4)G(5/2) -> H-6(7/2)) along with a red ((4)G(5/2) -> H-6(9/2)) and a yellow ((4)G(5/2) -> H-6(5/2)) emission transition have been measured from Sm3+ doped lithium-boro-tellurite glass. Both blue (F-4(9/2) -> H-6(15/2)) and yellow (F-4(9/2) -> H-6(13/2)) emission bands have been obtained from Dy3+ glass. From the measured decay profiles, the lifetimes of the emissions of the Sm3+ glass ((4)G(5/2) -> H-6(5/2), (7/2, 9/2 and 11/2)) at an excitation of 401 nm have been found to be in the range 0.47-0.81 ms, and with respect to the Dy3+ emissions (F-4(9/2) -> H-6(15/2 and 13/2)), with excitation at 450 nm, are measured to be in the range of 0.302-0.307 ms. Stimulated emission cross-sections (sigma(E)(rho)) of the measured emission transitions have also been computed and the values are in the range of (0.38-1.20) x 10(-20) cm(2) for Sm3+ and for Dy3+ doped lithium-boro-tellurite glass the values are (0.66-1.39) x 10(-20) cm(2).

Topics

• glass
• glass
• mass spectrometry
• Lithium