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ANTISTOKES RADIATION CONVERSION IN LUMINOPHORS
Kinetic Limitations on the Efficiency of AntiStokes
Efficiency of RE4 ion AntiStokes
10 other sections not shown
absorption activation energy afterglow anti-Stokes luminescence anti-Stokes luminophors bases birefringence calculated coefficient concentration cooperative luminophors corresponding cross-relaxation decay decrease degree of polarization determined diffusion doping efficiency of anti-Stokes electrolysis electronic elemental bands emission band energy transfer equation Er3+ ions Erbium Es band europium excitation spectra experiments impurities increase infrared integrating sphere intra-center investigated ions kinetics laser lattice Lebedev Physics Institute lines located lower term luminescence bands luminescence centers luminescence efficiency luminescence intensity luminescence polarization luminescence spectrum luminescence yield maximum measurements method multiphonon relaxation obtained one-photon optical axis orders of magnitude parameters photoluminescence photon photon energy PHYS probability processes pulses pumping density pumping energy pumping intensity pumping radiation quantum yield quenching rare-earth elements ratio RE3+ ions recombination red band region room temperature sample significantly Stark component Stokes pumping summing Table temperature dependence Tm3+ upper term wavelength YOC1 YOCl:Yb,Er zinc sulfide ZnS—Tm ZnS:Eu ZnS:Tm