Effects of F- on the optical and spectroscopic properties of Yb3+/Al3+-co-doped silica glass.
Yb3+/Al3+-co-doped silica glasses with different F− content were prepared in this work by sol–gel method combined with high temperature sintering. XRF, FTIR and XPS methods were used to confirm the presence of F−. The effects of F− on the optical and spectroscopic properties of these glasses have been investigated. It is worth to notice that the F−/Si4+ mass ratio equal to 9% is a significant value showing a real change in the variation trends of numerous following parameters: refractive index, UV absorption edge, absorption and emission cross sections, scalar crystal-field NJ and fluorescent lifetimes. Furthermore, introduction of F− can adjust the refractive index of Yb3+/Al3+-co-doped silica glass and it is useful for large mode area (LMA) fibers.
Strona internetowa wydawcy
Shao Chongyun, Guo Mengting, Zhang Yang, Zhou Li, Guzik Małgorzata, Boulon Georges, Yu Chunlei, Chen Danping, Hu Lili
Beć Krzysztof B., Hawranek Jerzy P.
Guo Mengting, Shao Chongyun, Zhang Yang, Yu Jingbo, Jiao Yan, Guzik Małgorzata, Boulon Georges, Ren Jinjun, Hu Lili