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Citation: A. Smith et al., Site selective excitation, upconversion and laser operation in Er3+: LiKYF5, OPT COMMUN, 188(1-4), 2001, pp. 219-232

Authors: Otto, AP Brewer, KS Silversmith, AJ

Citation: Ap. Otto et al., Red to blue upconversion in Tm-doped sol-gel silicate glasses, J NON-CRYST, 265(1-2), 2000, pp. 176-180