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Blue Upconversion Luminescence from Yb3+-doped Oxyfluoride Vitroceramics Excited by 960nm Laser |
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| Authors: | Chen Xiaobo Masaaki Ohtsuka Wang Guowen |
| Institution: | 1. Beijing Normal University Optics Center, 2. Sumita Optical Glass, INC. , Japan 3. Physics Department, Peking University, |
| Abstract: | This paper investigates the upconversion luminescence of Yb3+-doped oxyfluoride vitroceramics excited by 960 nm diode laser. A new upconversion cooperative radiation luminescence is found, which is rather strong and positioned at 479.5 nm. It comes from a coupled state of two Yb3+ ion cluster. It is of significance due to the effective method to obtain compact blue light. |
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