Host dependent frequency upconversion of Yb3+/Tm3+-codoped oxyfluoride tellurite glasses
نویسندگان
چکیده
The upconversion luminescence properties of Yb3+/Tm3+-codoped oxyfluoride tellurite glasses under 980 nm excitation are investigated experimentally. The intense blue and relatively weak red emissions centered at 475 and 649 nm corresponding to the transitions G4 → H6 and 1
منابع مشابه
Frequency upconversion of Tm3+ and Yb3+ codoped YLiF4 synthesized by hydrothermal method
In this paper, YLiF4 codoped with Tm3+ and Yb3+ ions was synthesized by hydrothermal method. Yb3+ concentration is fixed at 1.5%, and Tm3+ concentration is changed from 0.1 to 0.4%. Intense upconversion luminescence is observed when the samples are excited by 980 nm. The dependence of upconversion luminescence on Tm3+ concentrations is presented. The results show that upconversion luminescence ...
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