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  • Title: Optical spectroscopy, 1.06μm emission properties of Nd3+-doped phosphate based glasses.
    Author: Sk Nayab R, T S, A MB, L RM, C K J.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2017 Jun 05; 180():193-197. PubMed ID: 28292701.
    Abstract:
    Neodymium doped phosphate based glasses with composition of (P2O5+K2O+Al2O3+CaF2) were prepared. The samples were analysed through differential thermal analysis (DTA), Fourier transform infrared (FTIR), absorption, emission and decay measurements. Judd-Ofelt parameters (Ωλ) have been determined from the spectral intensities of absorption bands in order to calculate the radiative parameters like radiative transition probabilities (AR), radiative lifetime (τR) and branching ratios (βR) for the 4F3/2→4I11/2 laser transition of Nd3+ ion. The effective emission bandwidths (Δλeff), experimental branching ratios (βexp) and stimulated emission cross-sections (σe) have been determined from the emission spectrum. The decay curves of the 4F3/2 level exhibited almost single exponential nature for all the Nd3+ ion concentrations.
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