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  • Title: Anti-Stokes luminescence in bismuth-doped silica and germania-based fibers.
    Author: Firstov SV, Khopin VF, Velmiskin VV, Firstova EG, Bufetov IA, Guryanov AN, Dianov EM.
    Journal: Opt Express; 2013 Jul 29; 21(15):18408-13. PubMed ID: 23938712.
    Abstract:
    Luminescence excitation spectra of active centers in bismuth-doped vitreous SiO(2) and vitreous GeO(2) optical fibers under the two-step excitation have been obtained for the first time. The results revealed only one bismuth-related IR active center formed in each of these fibers. The observed IR luminescence bands at 1430 nm (1650 nm) and 830 nm (950 nm), yellow-orange (red) band at 580 nm (655 nm), violet (blue) band at 420 nm (480 nm) belong to this bismuth-related active center in the vitreous SiO(2) (vitreous GeO(2)), correspondingly.
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