Influence of Host Matrix on Optical Properties of Samarium-Doped Glasses: A Comparative Analysis of Zinc Oxide and Zinc Fluoride
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Abstract
Samarium-doped glasses have attracted considerable interest due to their promising optical properties for use in photonic, laser, and optoelectronic applications. In this work, a comparative study was conducted on Sm³⁺-doped borotellurite glasses with the chemical composition 29TeO₂–30B₂O₃–10X–20BaO–10Nb₂O₅–1Sm₂O₃, where X represents either ZnO or ZnF₂. The influence of the modifier type (oxide vs. fluoride) on the structural and luminescence behavior of the glasses was thoroughly examined. The incorporation of Sm³⁺ ions into these host matrices leads to significant variations in optical performance, dictated by the local environment and bonding characteristics. Comprehensive characterization, including absorption and emission spectra, and luminescence lifetimes, was performed to evaluate the suitability of each glass system for optical device applications. The findings highlight the critical role of glass composition in tailoring the emission efficiency and optical response of rare-earth-doped glass materials.
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