17 March 2000 Photorefractive properties of Mn-doped KNSBN crystals
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The photorefractive properties of Mn-doped KNSBN crystals, especially the crystal with a higher doping level (0.09 wt.%), was studied. Experiment showed that the properties of Mn:KNSBN crystals with 0.09 wt.% are different from others. This maybe provides a good material to study the electron- hole competition, which exists widely in PR crystals. The high order harmonic properties were also investigated. Five orders of harmonics were observed. It was found that the maximum of the second order index grating shifts towards a small incident angle with respect to that of the fundamental grating. Based on the strong harmonics in this kind of crystals, the recording of harmonic index gratings was achieved by using a novel method in experiment.
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Xiaonong Shen, JianHua Zhao, Shujun Zhang, Huanchu Chen, "Photorefractive properties of Mn-doped KNSBN crystals", Proc. SPIE 3956, Practical Holography XIV and Holographic Materials VI, (17 March 2000); doi: 10.1117/12.380023; https://doi.org/10.1117/12.380023

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