Photorefractive Properties of Paraelectric Copper Doped Potassium Tantalate Niobate

Chin. Phys. Lett.

1991, Vol. 8

Issue (10): 515-517 DOI:

Original Articles

Photorefractive Properties of Paraelectric Copper Doped Potassium Tantalate Niobate

GUAN Qingcai;WANG Jiyang;WANG Min;LIU Yaogang;WEI Jingqian;ZHANG Zhiguo^*;YANG Changxi^*;YE Peixian^*

Institute of Crystal Materials, Shandong University, Jinan 250100 ^*Institute of Physics, Academia sinica, Beijing 100080

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GUAN Qingcai, WANG Jiyang, WANG Min et al 1991 Chin. Phys. Lett. 8 515-517

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Abstract The photorefractive properties of Cu doped KTa_1-x Nb_xO₃ have been studied by using two-wave mixing method. The diffraction efficiency reaches as high as 52% under an electric field. The dependences of diffraction efficiency on interference angles and applied fields have been studied. The maximum light induced index change is found to be 2.33 x10^-5 and the photorefraction sensitivity calculated is 5 x 10^-6cm²/J. Experimental results demonstrate that electrons are the dominant charge carriers.

Keywords: 42.70.Gi 78.20.Jq

Published: 01 October 1991

PACS:	42.70.Gi	(Light-sensitive materials)
	78.20.Jq	(Electro-optical effects)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1991/V8/I10/0515

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	GUAN Qingcai
	WANG Jiyang
	WANG Min
	LIU Yaogang
	WEI Jingqian
	ZHANG Zhiguo
	YANG Changxi
	YE Peixian

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