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Proceedings Paper

Improvement of diffraction efficiency for 90-degree holographic recording geometry by using external electric fields in Fe-doped LiNbO3 crystals
Author(s): Aimin Yan; De'an Liu; Yu Zhou; Zhu Luan; Liren Liu
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Paper Abstract

Significant improvements of photorefractive properties such as diffraction efficiency with 90-degree holographic recording geometry have been obtained by the application of external electric fields. Experimental results show that the highest diffraction efficiency can be obtained at least 3 times than without external electric field in Fe-doped LiNbO3 crystals. The vectorial Kukhtarev equations are modified in single center model taking into account the directions of optical axis and external electric field. The photorefractive properties of single doped LiNbO3:Fe crystal using 90-degree storage geometry are theoretically investigated by jointly solving the vectorial material equations and the two dimensional coupled wave equations. The variation trends of the theoretical results are similar to the experimental results.

Paper Details

Date Published: 7 October 2005
PDF: 7 pages
Proc. SPIE 5911, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications XI, 591119 (7 October 2005); doi: 10.1117/12.612719
Show Author Affiliations
Aimin Yan, Shanghai Institute of Optics and Fine Mechanics, CAS (China)
De'an Liu, Shanghai Institute of Optics and Fine Mechanics, CAS (China)
Yu Zhou, Shanghai Institute of Optics and Fine Mechanics, CAS (China)
Zhu Luan, Shanghai Institute of Optics and Fine Mechanics, CAS (China)
Liren Liu, Shanghai Institute of Optics and Fine Mechanics, CAS (China)


Published in SPIE Proceedings Vol. 5911:
Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications XI
Francis T. S. Yu; Ruyan Guo; Shizhuo Yin, Editor(s)

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