Intense red upconversion luminescence from Tm3+/Yb3+ codoped transparent glass ceramic.

نویسندگان

  • Wei Xu
  • Jianmin Chen
  • Peng Wang
  • Zhiguo Zhang
  • Wenwu Cao
چکیده

Tm3+/Yb3+ codoped transparent glass ceramic containing β-PbF2 nanocrystals was successfully prepared. After thermal treatment, emissions from the state of Tm3+ excited by 980 nm laser were greatly quenched by cross relaxation and the 700 nm luminescence from Tm3+:3F2,3→3H6 transition was strongly enhanced. A nearly monochromatic red luminescence band was observed. Based on the luminescence decay curves and Judd-Ofelt analysis, the strengthened cross relaxation played an important role in such phenomenon.

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عنوان ژورنال:
  • Optics letters

دوره 37 2  شماره 

صفحات  -

تاریخ انتشار 2012