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研究了 96 0nm激光激发下HoYb双掺钒酸钇晶体HoYb :YVO4的直接上转换增敏发光 ,发现了Ho3 +离子的上转换发光现象 ,HoYb :YVO4晶体的上转换发光是5F5→5I8最强 ,而5S2 →5I8相对小了一个数量级 ,这是由于YVO4晶体既有很强的振子强度又有很大的多声子无辐射弛豫造成的 .
The upconversion luminescence of HoYb YVO4 ytterbium HoYb: YVO4 excited by 96 0nm laser was studied. The upconversion luminescence of Ho3 + ions was found. The upconversion luminescence of HoYb: YVO4 crystal was the strongest among 5F5 → 5I8 While 5S2 → 5I8 is relatively small by an order of magnitude due to the strong oscillator strength of the YVO4 crystal and the large polyphonic non-radiation relaxation.