Superiority of shortwave transparent glasses with moderate phonon energy in achieving effective radiations from 1D2 level of Pr3

摘要: Abstract Radiation-level 1D2 adaptive fluorophosphate glasses (NBFP) have been exhibited and relevant transition emissions of Pr3+ quantitatively characterized. Intense visible fluorescence is proved to generate from level principally the quantum yield (QY) originating this as high 7.94% in 500–900 nm, indicating decisive significance reddish-orange NBFP glasses. Effective broadband 1.47 μm near-infrared (NIR) emission ascribed 1D2→1G4 has observed, meanwhile, full-width at half-maximum obtained be 141 nm maximum stimulated cross-section derived 5.75 × 10−21cm2, suggesting effectiveness NIR initial specific In view absolute radiation parameters branch ratios, net photon number attractive expected 4.5 × 1014cps under 453 nm laser pumping with 82.05 mW power, corresponding QY anticipated 2.0%. High shortwave transparency moderate phonon energy are confirmed two important indicators for exploring suitable host materials achieving effective radiations Pr3+, revealing forward-looking applications amplifiers irradiative luminescence sources.