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The ultraviolet upconversion luminescence of Tm 3+ ions sensitized by Yb 3+ ions in oxyfluoride glass when excited by a 975nm diode laser was studied in this paper. One typical ultraviolet upconversion luminescence lines positioned at 362.3nm was found. It can be attributed to the five-photon upconversion luminescence transition of 1 D 2 → 3 H 6 . Several...
This paper investigates and compares the direct upconversion sensitization luminescence of ErYb co-doped oxyfluoride glass (ErYb:FOG) and vitroceramics (ErYb:FOV) when excited by a 966-nm diode laser. It is found that there are splendid upconversion luminescence phenomena which are studied and analyzed carefully. (1) It is found that the direct sensitization upconversion luminescence L of ErYb:FOV...
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