TY - JOUR AU - Chanthima, Natthakridta AU - Kiwsakunkran, Nuchjaree AU - Kaewkhao, Jakrapong AU - Sangwaranatee, Narong PY - 2019/06/29 Y2 - 2024/03/28 TI - Optical and luminescence investigation of Er3+ doped in Na2O-Al2O3-P2O5 glasses for photonics material application JF - Journal of Metals, Materials and Minerals JA - J Met Mater Miner VL - 29 IS - 2 SE - Original Research Articles DO - UR - https://jmmm.material.chula.ac.th/index.php/jmmm/article/view/408 SP - AB - Optical and photoluminescence properties of Er<sup>3+</sup> doped Na<sub>2</sub>O-Al<sub>2</sub>O<sub>3</sub>-P<sub>2</sub>O<sub>5</sub> (NAPEr) glasses were prepared by conventional melt quenching technique at 1200°C. The absorption spectra have 11 peaks corresponded to <sup>4</sup>I<sub>15/2</sub> ground state to various excited energy levels. The absorption band at 1537 nm shows highest intensity in near-infrared (NIR) region. Also, it can be observed that the intensity of absorption bands increased on increase in concentrations of Er<sub>2</sub>O<sub>3</sub>. The Judd-Ofelt (JO) parameters (Ωλ, λ = 2, 4, and 6) are calculated using the absorption bands of the Er<sub>2</sub>O<sub>3</sub> doped glass compositions. McCumber theory has been applied to determine the emission cross-sections (σe) of the <sup>4</sup>I<sub>13/2</sub>→<sup>4</sup>I<sub>15/2</sub> transition using the absorption cross-sections (σa). The results of these properties revealed that the glasses doped with Er<sup>3+</sup> ions are promising candidates for photonics material application. ER -