3 December 2014 Anomalous laser deflection phenomena based on the interaction of electro-optic and graded refractivity effect in Cu:KTN crystal
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Abstract
In this paper, we report an abnormal laser deflection phenomena based on quadratic electro-optic effect in copper doped KTN crystal. Cu:KTa0.62Nb0.38O3 block with size a×b×c = 2.8mm×2.6mm×12.5mm was used as beam deflection element. 75mrad beam deflection angle were observed under 1KV voltage when the laser beam across the c direction of the sample at room temperature. The special features of our experiment are that the direction of laser beam deflect perpendicular to the electric field direction, and the angular size and direction of the deflection beam remain unchanged when the electric field direction reverse. We believe that the interaction of graded refractivity and electro-optic effect leads to these special features. Besides of the special deflection mode, the deflection efficiency of our experiment also reached the world advanced level.
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Xuping Wang, Xuping Wang, Bing Liu, Bing Liu, Yuguo Yang, Yuguo Yang, Yuanyuan Zhang, Yuanyuan Zhang, Xianshun Lv, Xianshun Lv, Guanglie Hong, Guanglie Hong, Rong Shu, Rong Shu, Haohai Yu, Haohai Yu, Jiyang Wang, Jiyang Wang, } "Anomalous laser deflection phenomena based on the interaction of electro-optic and graded refractivity effect in Cu:KTN crystal", Proc. SPIE 9297, International Symposium on Optoelectronic Technology and Application 2014: Laser and Optical Measurement Technology; and Fiber Optic Sensors, 92971C (3 December 2014); doi: 10.1117/12.2072571; https://doi.org/10.1117/12.2072571
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