Planar waveguides in neodymium-doped calcium niobium gallium garnet crystals produced by proton implantation
Liu Chun-Xiao1, †, , Chen Meng1, Fu Li-Li2, Zheng Rui-Lin1, Guo Hai-Tao3, Zhou Zhi-Guang3, Li Wei-Nan3, Lin She-Bao4, Wei Wei1, ‡,
       

(a) Fluorescence spectrum and (b) decay curve of the Nd:CNGG crystal.