掺杂剂组成比对LiNbO₃:Cu:Ce晶体中非易失性全息记录的影响。

Effect of dopant composition ratio on nonvolatile holographic recording in LiNbO3:Cu:Ce crystals.

作者信息

Dong Qianmin, Liu Liren, Liu De'an, Dai Cuixia, Ren Liyong

机构信息

Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 210800, China.

出版信息

Appl Opt. 2004 Sep 10;43(26):5016-22. doi: 10.1364/ao.43.005016.

DOI:10.1364/ao.43.005016

PMID:15468702

Abstract

The effect of dopant composition ratio on nonvolatile holographic recording in LiNbO3:Cu:Ce crystals is investigated experimentally. The results show that the dopant composition ratio affects the recording sensitivity and fixed diffraction efficiency by altering the UV light absorption characteristics of the crystals during nonvolatile, holographic recording. Increasing the dopant composition ratio of Cu and Ce leads to an increase in the absorption of UV light and further to an increase in the recording sensitivity and fixed diffraction efficiency. The UV light absorption characteristics of LiNbO3:Cu:Ce crystals and their roles in nonvolatile holographic recording are theoretically analyzed. The theoretical results are consistent with those of the experiments.

摘要

实验研究了掺杂剂组成比对于LiNbO₃:Cu:Ce晶体中非易失性全息记录的影响。结果表明，在非易失性全息记录过程中，掺杂剂组成比通过改变晶体的紫外光吸收特性来影响记录灵敏度和固定衍射效率。增加Cu和Ce的掺杂剂组成比会导致紫外光吸收增加，进而使记录灵敏度和固定衍射效率提高。对LiNbO₃:Cu:Ce晶体的紫外光吸收特性及其在非易失性全息记录中的作用进行了理论分析。理论结果与实验结果一致。