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报道了(Cr4+ , Yb3+ )vYAG晶体的吸收光谱和荧光光谱特性。在室温下, (Cr4+ , Yb3+ )vYAG晶体在937 nm 和968 nm 处存在两个吸收带, 能与InGaAs激光二极管有效耦合; 而且在1030 nm 处有一Cr4+ 吸收峰, 可以实现对Yb3+ 的自调Q激光输出。(Cr4+ , Yb3+ )vYAG晶体的荧光光谱与Yb3+ vYAG晶体一样, 发光中心也是位于1029 nm , 但其强度比Yb3+ vYAG 晶体的要低。(Cr4+ , Yb3+ )vYAG晶体和Yb3+ vYAG晶体的荧光寿命分别为0.3 m s 和1.4 m s。因此双掺Cr4+ 和Yb3+ 的YAG晶体将有可能成为一种自调Q激光晶体, 从而实现固体激光器的小型化, 全固化
The absorption and fluorescence spectra of (Cr4 +, Yb3 +) vYAG crystals have been reported. At room temperature, (Cr4 +, Yb3 +) vYAG crystals have two absorption bands at 937 nm and 968 nm, which can be effectively coupled with InGaAs laser diodes. Moreover, there is a Cr4 + absorption peak at 1030 nm, Laser output. Fluorescence spectra of (Cr4 +, Yb3 +) vYAG crystals are the same as those of Yb3 + vYAG crystals. The emission center is also at 1029 nm, but its intensity is lower than that of Yb3 + vYAG crystals. The fluorescence lifetime of (Cr4 +, Yb3 +) vYAG crystals and Yb3 + vYAG crystals are 0.3 m s and 1.4 m s, respectively. Therefore, YAG crystals doped with Cr4 + and Yb3 + doping will become self-Q-switched laser crystals, which will make miniaturization and full curing of solid-state lasers possible