Improvement of the Two-Beam Coupling Response Time in Photorefractive Double-Doping KNbO3
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Abstract
We report experimental studies on the photorefractive response of KNbO3 doubly doped with manganese and rubidium, iron and rubidium, respectively. Two- beam coupling response time in KNbO3:Mn:Rb is 3 to 10 times shorter while the two-beam coupling gain coefficient remains almost the same when compare with that in KNbO3 :Mn. On the other hand, under similar conditions, two-beam coupling response time in KNbO3 :Fe:Rb is 6 times faster than that in KNbO3 :Fe.
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ZHANG Zhi-guo, Y. Ding, H. J . Eichler, FU Pan-ming, ZHOU Gang, TANG Jun-xiong, SHEN De-zhong, MA Xiao-yan, CHEN Jiong-yao. Improvement of the Two-Beam Coupling Response Time in Photorefractive Double-Doping KNbO3[J]. Chin. Phys. Lett., 1997, 14(2): 103-105.
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ZHANG Zhi-guo, Y. Ding, H. J . Eichler, FU Pan-ming, ZHOU Gang, TANG Jun-xiong, SHEN De-zhong, MA Xiao-yan, CHEN Jiong-yao. Improvement of the Two-Beam Coupling Response Time in Photorefractive Double-Doping KNbO3[J]. Chin. Phys. Lett., 1997, 14(2): 103-105.
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ZHANG Zhi-guo, Y. Ding, H. J . Eichler, FU Pan-ming, ZHOU Gang, TANG Jun-xiong, SHEN De-zhong, MA Xiao-yan, CHEN Jiong-yao. Improvement of the Two-Beam Coupling Response Time in Photorefractive Double-Doping KNbO3[J]. Chin. Phys. Lett., 1997, 14(2): 103-105.
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ZHANG Zhi-guo, Y. Ding, H. J . Eichler, FU Pan-ming, ZHOU Gang, TANG Jun-xiong, SHEN De-zhong, MA Xiao-yan, CHEN Jiong-yao. Improvement of the Two-Beam Coupling Response Time in Photorefractive Double-Doping KNbO3[J]. Chin. Phys. Lett., 1997, 14(2): 103-105.
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