Optical properties of Sm3+ ions in zinc potassium fluorophosphate glasses

Emission properties and temperature dependence of Cu+ luminescence in the CaO–CaF2–P2O5 ternary glass system co-doped with CuO and SnO

“…The results then indicate a greater thermal stability for the oxyfluorophosphate matrix, primarily the 30CaO-20CaF 2 -50P 2 O 5 composition. This is likely connected to the expected lower phonon energy achieved owing to fluoride ions [12][13][14][15] decreasing the probability for the nonradiative processes that have an effect on the PL quenching with temperature.…”

“…These can be prepared with relative ease by the melt-quenching technique with conventional systems, also allowing for high flexibility in terms of material composition. Further, fluoride-containing glasses can provide additional advantages compared to pure oxide-based ones such as high transparency and low phonon energy [12][13][14][15]. The latter is a particularly attractive property for near-infrared luminescence applications as it decreases the non-radiative decay probability of the infraredactive RE ions, and hence increases photon emission efficiency.…”

Sm3+ Doped Borotellurite Glass: Absorption, Fluorescence and Optical Parameters

“…The small change of the these ratios indicates that the asymmetry of ligand and covalency of RE 3+ -ligand bond nearly does not depend on the Sm 3+ concentration. However, the values of the O/R ratios in BTNA glass are higher than those of the zinc potassium fluorophosphate (PKAMZF) and borotellurite (BTS) glasses [12,13]. This indicates the asymmetry of crystal field at the RE 3+ ions site and the covalency of RE 3+ -ligand bond for BTNA glass is lower in the PKAMZ and BTS glasses.…”

“…Among emission transitions, the [2,12]. Therefore, the intensity ratio O/R (orange/red) can be used to evaluate the characteristics of the local environment around the RE 3+ ions [12,13]. The O/R ratios increase slightly from 2.15 to 2.29 when the concentration of Sm 3+ increases from 0.1 to 1,0 mol%.…”

Sm3+-doped fluorophosphate glass: Formation of Ag nanoparticles via Ag+/K+ ion exchange and their effects on optical and dielectric properties

“…It is one of the set of glasses we have investigated for the visible laser applications and optical fiber amplifiers [17]. The glass was incised into two segments and one piece was heat treated at 350°C for 24 h, which is referred to as PKSm hereafter.…”