掺铈钾钠锶钡铌酸盐晶体中透射光折变体光栅的衍射特性

Diffraction properties of transmission photorefractive volume gratings in a cerium-doped potassium sodium strontium barium niobate crystal.

作者信息

Liang B L, Wang Z Q, Mu G G, Guan J H, Cartwright C M

机构信息

Opto-electronic Information Science and Technology Lab of the Educational Ministry of China, E. M. C., Institute of Modern Optics, Nankai University, Tianjin 300071, China.

出版信息

Appl Opt. 1999 Sep 10;38(26):5552-5. doi: 10.1364/ao.38.005552.

DOI:10.1364/ao.38.005552

PMID:18324065

Abstract

The diffraction efficiency of volume gratings written by two-wave mixing in a cerium-doped potassium sodium strontium barium niobate (Ce:KNSBN) photorefractive crystal is studied. It is found that the diffraction efficiency strongly depends on the polarization of writing beams and exhibits loop behavior with respect to the fringe modulation. The fringe modulations before and behind the crystal are compared. Modified coupled-wave theory is used to fit the experimental data. This research presents data that are relevant to the application of Ce:KNSBN crystals to holographic recording and optical information processing.

摘要

研究了铈掺杂铌酸钾钠锶钡（Ce:KNSBN）光折变晶体中通过二波混频写入的体光栅的衍射效率。发现衍射效率强烈依赖于写入光束的偏振，并且相对于条纹调制呈现出循环行为。比较了晶体前后的条纹调制。使用修正的耦合波理论来拟合实验数据。这项研究提供了与Ce:KNSBN晶体在全息记录和光学信息处理中的应用相关的数据。