FIXING OF PHOTOREFRACTIVE VOLUME HOLOGRAMS IN K1-YLIYTA1-XNBXO3

被引：22

作者：

LEYVA, V

ENGIN, D

TONG, XL

TONG, M

YARIV, A

AGRANAT, A

机构：

[1] CALTECH,PASADENA,CA 91125

[2] HEBREW UNIV JERUSALEM,JERUSALEM,ISRAEL

来源：

OPTICS LETTERS | 1995年 / 20卷 / 11期

关键词：

D O I：

10.1364/OL.20.001319

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the fixing of photorefractive holographic gratings with high efficiency in a sample of K1-yLiyTa1-xNbxO3 doped with Cu, V, and Ti. Holograms are thermally fixed through the screening of a photorefractive space-charge field by a nonphotoactive species at elevated temperatures. Fixed holograms are revealed by illumination at lower temperatures. Diffraction efficiencies of 25% in a 0.54-cm-thick sample are measured. Holograms undergo thermal decay with a 0.67-eV activation energy.

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页码：1319 / 1321

页数：3

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