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  • Title: Spectroscopic study of Er:Sm doped barium fluorotellurite glass.
    Author: Bahadur A, Dwivedi Y, Rai SB.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2010 Sep 15; 77(1):101-6. PubMed ID: 20510646.
    Abstract:
    In this paper, we report the physical and spectroscopic properties of Er(3+), Sm(3+) and Er(3+):Sm(3+) ions codoped barium fluorotellurite (BFT) glasses. Different Stokes and anti-Stokes emissions were observed under 532 nm and 976 nm laser excitations. Energy transfer from Er(3+) ion to Sm(3+) ion was confirmed on the basis of luminescence intensity variation and decay curve analysis in both the cases. Under green (532 nm) excitation emission intensity of Sm(3+) ion bands improves whereas on NIR (976 nm) excitation new emission bands of Sm(3+) ions were observed in Er:Sm codoped samples. Ion interactions and the different energy transfer parameters were also calculated.
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