Holographic and Thermal-Fixing Characteristics of Doubly Doped Zn：Fe：LiNbO3 Crystals  

作　　者：李光明 万玉红 江竹青 陶世荃 

机构地区：[1]College of Applied Sciences, Beijing University of Technology, Beijing 100022

出　　处：《Chinese Physics Letters》2006年第10期2782-2785,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under the Grant No 60377003. The authors thank Professor Yuheng Xu at Harbin Institute of Technology for providing theZn：Fe：LiNb03 crystal.

摘　　要：We perform a comprehensive experimental study on holographic and thermal-fixing characteristics of Zn：Fe：LiNbO3 The measured hologram decay time constants, respectively caused by optical readout and under dark condition, with thermal fixing are 15 times and 75 times longer than that obtained without thermal fixing. This suggests that Zn：Fe：LiNbO3 crystals are suitable for thermal fixing. Multiplexed recordings of 300 holograms using different thermal fixing schemes verify that a proper multiplexing scheme such as track-division thermal-fixing scheme for disc-type holographic storage can effectively compensate for the negative effect of zinc-doping on the dynamic range, thus the storage density is enhanced.We perform a comprehensive experimental study on holographic and thermal-fixing characteristics of Zn：Fe：LiNbO3 The measured hologram decay time constants, respectively caused by optical readout and under dark condition, with thermal fixing are 15 times and 75 times longer than that obtained without thermal fixing. This suggests that Zn：Fe：LiNbO3 crystals are suitable for thermal fixing. Multiplexed recordings of 300 holograms using different thermal fixing schemes verify that a proper multiplexing scheme such as track-division thermal-fixing scheme for disc-type holographic storage can effectively compensate for the negative effect of zinc-doping on the dynamic range, thus the storage density is enhanced.

关 键 词：STORAGE 

分 类 号：O438.1[机械工程—光学工程]