Brown, R.S., Brocklesby, W.S., Hewak, D.W. and Samson, B.N.
The effect of oxide on the spectroscopic properties of praseodymium 1.3µm transition in gallium-lanthanum-sulphide glass
Journal of Luminescence, 66-67, . (doi:10.1016/0022-2313(95)00153-0).
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This paper details measurements of 1.0 µm 3H4 to 1G4 absorption and site selective studies of the 1.3µm 1G4 to 3H5 fluorescence of Pr3+-doped gallium lanthanum sulphide (GLS) glasses containing oxide impurities. This oxide produces a second, preferentially-occupied site for the Pr3+ within the GLS, which increases the inhomogeneity of the spectral lines, and decreases the lifetime and the quantum efficiency of the 1G4 level.
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