Effects of alkaline-earth fluorides and OH− on spectroscopic properties of Yb3+ doped TeO2–ZnO–B2O3 based glasses

• Published in: Journal of luminescence Vol. 140; pp. 26 - 29
• Main Authors: Xu, Shennuo, Wang, Pengfei, Zheng, Ruilin, Wei, Wei, Peng, Bo
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01-08-2013; Elsevier
• Subjects: Alkaline-earth fluorides; Boro-tellurite glass; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Emission cross-section; Exact sciences and technology; Optical constants: refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of bulk materials and thin films; Photoluminescence; Physics; Raman spectra; Raman spectra; Emission cross-section; Boro-tellurite glass; Alkaline-earth fluorides; Boron oxide; Doping; Glass; Fluorescence; Zinc Oxides; Dehydration; Tellurites; Tellurite glass; Strontium fluoride; Zinc oxide; Absorption spectra; Calcium fluoride; Transition element compounds; Doped materials; Binary compounds; Lifetime; Ytterbium oxides; Ytterbium additions; II-VI semiconductors; Tellurium oxide; Magnesium fluoride; Magnesium Fluorides
• ISSN: 0022-2313; 1872-7883
• DOI: 10.1016/j.jlumin.2013.02.056

New kinds of Yb2O3-doped boro-tellurite (TeO2–ZnO–B2O3) based glasses were prepared by introducing alkaline-earth fluorides (MgF2, CaF2, SrF2, and BaF2). Their structural and spectroscopic properties were investigated by Raman and absorption spectra measurements. Dehydration ability of alkaline-earth fluorides was studied. The OH can have an obvious effect on fluorescence lifetime of Yb3+, when OH concentration is higher than NOH=4.66×1019cm−3. For TeO2–ZnO–B2O3–BaF2 glass system, the peak values of integrated absorption and emission cross-sections achieve 7.44×104pm3 and 1.416pm2, respectively. It indicates that the Yb3+-doped boro-tellurite glasses containing alkaline-earth fluorides are potential materials for waveguide laser, and optical amplifier.
► Structure of boro-tellurite glasses was studied by Raman spectra. ► Different alkaline-earth fluorides were introduced into tellurite glasses. ► Dehydration ability of fluorides was evaluated with FTIR spectra. ► The relationship between Yb3+ lifetime and OH-concentration was studied.