Upconversion properties of Er3+ doped lead silicate glasses

Optical Properties of Er3+ Ions in Calcium Niobium Gallium Garnet (CNGG) Crystals

“…Refs. [4,14,16,17,19,20] [22]. Therefore, it is confirmed that the observed 536 nm emission is due to the 2 H 11/2 3 4 I 15/2 transition.…”

“…The observed four green emission bands, the 545, 554, and 558 nm emission bands, are attributable to the 4 [16], and RbTiOPO 4 [17]. The 545, 554, and 558 nm emission bands show the same temporal behavior but they have a different decay curve in comparison with the 535 nm emission.…”

Morphology and phase evolvement of Yb3+/Er3+ co-doped NaYF4 microtubes prepared with YF3 submicrospindles as precursor

“…The UC of infrared to visible light by materials doped with rare earth ions has attracted considerable attention due to the potential applications in the areas of color display, short wavelength lasers and biomedicine. Among these rare earth ions, the Er 3+ ion, which has several metastable energy levels and can restore the excitation energy for up-converting near infrared (NIR) light into short wavelength radiation, is a very excellent candidate for UCL [25]. However, the absorption across section of Er 3+ is narrow in near infrared region, which leads to that the luminescent efficiency of Er 3+ single doped materials is relatively low.…”

Up-conversion luminescence of erbium (III) oxalate nanoparticles/titania/ÿ-glycidoxypropyltrimethoxysilane composite sol-gel thin films

“…[4][5][6][7] Due to its 4f n electronic level structures of these ions provide many long-lived intermediate levels that can be populated with infrared radiation as well as metastable higher lying levels that give rise to strong visible emission. 8 Therefore, much effort has been focused on the conversion of infrared radiation into visible light through frequency up-conversion in erbium-doped crystals and glass materials, [9][10][11][12][13] which includes gallate glasses, fluoride glasses, germanate glasses, 14 sol-gel silica, 15 and other multicomponent oxide glasses. 16 In the preparation of these materials, sol-gel process has attracted greater Erbium (III) oxalate nanoparticles dispersed titania/ÿ-Glycidoxypropyltrimethoxysilane composite materials for photonic applications were prepared by a chemical approach combining the microemulsion technique and the sol-gel method at low temperature.…”