Spectroscopic study of Er:Sm doped barium fluorotellurite glass.
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.
Laser and Spectroscopy Laboratory, Department of Physics, Banaras Hindu University, Varanasi 221005, India.
A
A
Bahadur
Y
Y
Dwivedi
S B
SB
Rai
D001464:Barium / Q000737:chemistry*; D004735:Energy Transfer; D004871:Erbium / Q000737:chemistry*; D005898:Glass / Q000737:chemistry*; D007700:Kinetics; D049449:Luminescence; D012493:Samarium / Q000737:chemistry*; D013057:Spectrum Analysis; D013691:Tellurium / Q000737:chemistry*; D013818:Thermogravimetry
D001464:Barium; D012493:Samarium; D004871:Erbium; C026660:tellurous acid; D013691:Tellurium