Visualizations of Light-induced Refractive Index Changes in Photorefractive Crystals Employing Digital Holography

Chin. Phys. Lett.

2003, Vol. 20

Issue (10): 1748-1751 DOI:

Original Articles

Visualizations of Light-induced Refractive Index Changes in Photorefractive Crystals Employing Digital Holography

ZHAO Jian-Lin;ZHANG Peng;ZHOU Jian-Bo;ANG De-Xing;YANG Dong-Sheng;LI En-Pu

Department of Applied Physics, Northwestern Polytechnical University, Xi’an 710072

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ZHAO Jian-Lin, ZHANG Peng, ZHOU Jian-Bo et al 2003 Chin. Phys. Lett. 20 1748-1751

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Abstract We propose a novel approach to visualize the light-induced refractive index changes in photorefractive crystals employing digital holography. The holograms formed in a Mach-Zehnder interferometer are recorded by a two-dimensional CCD camera. From these holograms, the phase differences, which contain the information of the index changes in photorefractive crystals, are determined by utilizing digital holographic interferometry. Then the two-dimensional visualizations of index changes in the crystals can be obtained. This method is successfully emonstrated in LiNbO₃:Fe, KNSBN:Ce and SBN:Cr crystals.

Keywords: 42.65.Hw 42.40.Kw

Published: 01 October 2003

PACS:	42.65.Hw	(Phase conjugation; photorefractive and Kerr effects)
	42.40.Kw	(Holographic interferometry; other holographic techniques)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2003/V20/I10/01748

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	ZHAO Jian-Lin
	ZHANG Peng
	ZHOU Jian-Bo
	ANG De-Xing
	YANG Dong-Sheng
	LI En-Pu

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