Investigation of Thermal Sensing in Fluoroindate Yb/Er Co-Doped Optical Fiber.

An investigation of fluoroindate glass and fiber co-doped with Yb/Er ions as a potential temperature sensor was assessed using the fluorescence intensity ratio (FIR) technique. Analysis of thermally coupled levels (TCLs-H and S), non-thermally coupled levels (non-TCLs-F and F), and their combination were examined. Additionally, the luminescent stability of the samples under constant NIR excitation using different density power at three different temperatures was carried out.

Correction: Highly efficient green up-conversion emission from fluoroindate glass nanoparticles functionalized with a biocompatible polymer.

[This corrects the article DOI: 10.1039/D2RA03171J.].

The Effect of Fluorides (BaF, MgF, AlF) on Structural and Luminescent Properties of Er-Doped Gallo-Germanate Glass.

The effect of BaF, MgF, and AlF on the structural and luminescent properties of gallo-germanate glass (BGG) doped with erbium ions was investigated. A detailed analysis of infrared and Raman spectra shows that the local environment of erbium ions in the glass was influenced mainly by [GeO] and [GeO] units. Moreover, the highest number of non-bridging oxygens was found in the network of the BGG glass modified by MgF.

Highly efficient green up-conversion emission from fluoroindate glass nanoparticles functionalized with a biocompatible polymer.

Up-conversion nanoparticles have garnered lots of attention due to their ability to transform low energy light (near-infrared) into high-energy (visible) light, enabling their potential use as remote visible light nano-transducers. However, their low efficiency restricts their full potential. To overcome this disadvantage, fluoroindate glasses (InF) doped at different molar concentrations of Yb and Er were obtained using the melting-quenching technique, reaching the highest green emission at 1.

Investigation of the TeO/GeO Ratio on the Spectroscopic Properties of Eu-Doped Oxide Glasses for Optical Fiber Application.

This study presented an analysis of the TeO/GeO molar ratio in an oxide glass system. A family of melt-quenched glasses with the range of 0-35 mol% of GeO has been characterized by using DSC, Raman, MIR, refractive index, PLE, PL spectra, and time-resolved spectral measurements. The increase in the content of germanium oxide caused an increase in the transition temperature but a decrease in the refractive index.

Fluoroindate Glass Co-Doped with Yb/Ho as a 2.85 μm Luminescent Source for MID-IR Sensing.

This work reports on the fabrication and analysis of near-infrared and mid-infrared luminescence spectra and their decays in fluoroindate glasses co-doped with Yb/Ho. The attention has been paid to the analysis of the Yb→ Ho energy transfer processed ions in fluoroindate glasses pumped by 976 nm laser diode. The most effective sensitization for 2 μm luminescence has been obtained in glass co-doped with 0.