Cu-Doped KNSBN Single Crystals
XIA Hai-rui1 , WANG Cheng-jian1 , CHEN Huan-chu2 , YANG Zhao-he2
1 Department of Physics, 2 Institute of Crystal Materials, Shandong University, Jihan 250100
Cu-Doped KNSBN Single Crystals
XIA Hai-rui1 ;WANG Cheng-jian1 ;CHEN Huan-chu2 ;YANG Zhao-he2
1 Department of Physics, 2 Institute of Crystal Materials, Shandong University, Jihan 250100
关键词 ：
61.50.Cj ,
61.70.Tm ,
71.70.Ch
Abstract ： The preparation procedure, the transmissivity, and the two-wave coupling properties of coppermodified potassium sodium strontium barium niobate (KNSBN) crystals are reported. The Cu ions doped in KNSBN can form two deep energy levels. This means that they are able to act as centers for free charge carrier stimulation and recombination. The two-wave coupling gain coefficient of KNSBN: Cu is two times larger than that of KNSBN. The photorefractive sensitivity of KNSBN: Cu is estimated to be in the order of 10-3 cm2 /J.
Key words ：
61.50.Cj
61.70.Tm
71.70.Ch
出版日期: 1996-10-01
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1996, Vol. 13 
