Optical spectroscopy, 1.06μm emission properties of Nd-doped phosphate based glasses.

Neodymium doped phosphate based glasses with composition of (PO+KO+AlO+CaF) were prepared. The samples were analysed through differential thermal analysis (DTA), Fourier transform infrared (FTIR), absorption, emission and decay measurements. Judd-Ofelt parameters (Ω) have been determined from the spectral intensities of absorption bands in order to calculate the radiative parameters like radiative transition probabilities (A), radiative lifetime (τ) and branching ratios (β) for the F→I laser transition of Nd ion.

Investigations on spectroscopic properties of Er(3+)-doped Li-Zn fluoroborate glass.

Er(3+)-doped Li-Zn fluoroborate glass was synthesized via melt quenching technique. Optical properties of the glass were investigated by UV-Vis-NIR absorption and emission spectra. To evaluate the nature of Er(3+)-ligand bond in the glass network, nephelauxetic ratios and bonding parameter were calculated.