DEDUCTION OF THE LUMINESCENCE PARAMETERS OF TELLURIUM OXIDE BASED GLASSES DOPED WITH Er 3+ IONS
作者： M. M. Elokr , Y. M. Aboudeif
DOI:
关键词: Ion 、 Analytical chemistry 、 Doping 、 Laser 、 Inorganic chemistry 、 Materials science 、 Luminescence 、 Oscillator strength 、 Excited state 、 Stimulated emission 、 Tellurium oxide
摘要: Quaternary glasses within system 75TeO2-10Nb2O5-10ZnO5PbO doped with different concentration of Er2O3 ions were prepared. The Judd–Ofelt parameters 2, 4, 6, the oscillator strength type transition probabilities, spectroscopic quality factors, branching ratio and radiative lifetimes several excited states Er 3+ have been evaluated. gain crosssection laser level from 4 I13/2 → I15/2 was obtained. 75TeO2-10Nb2O5-5PbO10ZnO-8750 ppm has highest effective emission cross section bandwidth (66.3nm) large stimulated cross-section equal 27.9610 -21 cm 2 . Spectroscopic properties indicate that this glass is a promising candidate for optical applications.
chalcogen.ro参考文章(1)
El Sayed Yousef, H.H. Hegazy, Samar Almojadah, M. Reben, Absorption spectra and Raman gain coefficient in near-IR region of Er3+ ions doped TeO2–Nb2O5–Bi2O3–ZnO glasses Optics and Laser Technology. ,vol. 74, pp. 138- 144 ,(2015) , 10.1016/J.OPTLASTEC.2015.06.002