Xu Xiaodong, Zhao Zhiwei, Song Pingxin, Zhou Guoqing, Xu Jun, Deng Peizhen, Bourdet Gilbert, Chanteloup Jean Christophe, Zou Ji-Ping, Fulop Annabelle
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, P.O. Box 800-211, Shanghai 201800, People's Republic of China.
Spectrochim Acta A Mol Biomol Spectrosc. 2005 Sep;61(11-12):2444-7. doi: 10.1016/j.saa.2004.09.007.
Infrared (1.2-1.6 microm) luminescence in a ytterbium aluminium garnet (YbAG) crystal, doped with Cr (0.05at.%) ions, was investigated under CW laser diode pumping (lambda=940 nm). The Cr4+ emission band was observed with its peak at 1.34 microm and measured to be about 1.3 times with respect to Yb3+ IR luminescence (lambda=1.03 microm). We demonstrate that for the excitation wavelength of 940 nm Yb3+ ions act as sensitizers of the 3B2(3T2)-3B1(3A2) emission of Cr4+ ions. This crystal is promising as a high-efficient system for tunable laser (1.2-1.6 microm) output.
在掺有0.05原子百分比Cr离子的镱铝石榴石（YbAG）晶体中，研究了在连续波激光二极管泵浦（波长λ = 940 nm）下的红外（1.2 - 1.6微米）发光。观察到Cr4+发射带，其峰值位于1.34微米处，相对于Yb3+红外发光（波长λ = 1.03微米）测量约为1.3倍。我们证明，对于940 nm的激发波长，Yb3+离子充当Cr4+离子3B2(3T2)-3B1(3A2)发射的敏化剂。这种晶体有望成为用于可调谐激光（1.2 - 1.6微米）输出的高效系统。
