＜正＞Crystal is one of the most important laser host materials,a useful laser crystal must have two essential qu...
Haomiao Zhu Yujin Chen Yanfu Lin Xinghong Gong Qiguang Tan Zundu Luo Yidong Huang National Engineering Research Center for Optoelectronic Crystalline Materials,Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou,Fujian,350002,China
The limitation of the random walk theory of energy transfer between rare earth ions in crystals published in literatures is pointed out in this paper. A modified model, which can be used in any level of rare earth ion concentration when the interaction between donor and acceptor is different from that between donors, is introduced. measured fluorescence lifetimes of Yb^3＋：YAl3（BO3）4 This model has been applied to analyze the with a series of Yb^3＋ concentrations.
