Studies of the second-order nonlinear optical properties of cubic boron nitride |
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| Authors: | Zhanguo Chen Gang Jia Qingping Dou Haitao Ma Tiechen Zhang |
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| Affiliation: | (1) College of Electronic Science and Engineering, State Key Laboratory of Integrated Optoelectronics, Jilin University, Changchun, 130012, P.R. China;(2) Department of Computer Engineering, College of Zhuhai, Jinan University, Zhuhai, 519070, P.R. China;(3) Institute No. 25 of the Second Academy, China Aerospace Science & Industry Corp., Beijing, 100854, P.R. China;(4) State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012, P.R. China |
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| Abstract: | Cubic boron nitride (cBN) is a kind of artificial wide-energy-gap semiconductor crystal, which has zinc blende structure with Td symmetry. The second-order nonlinear optical properties of cBN single crystal were investigated for the first time. Using a Q-switching Nd:YAG laser, the optical rectification and the second-harmonic generation at 532 nm from cBN single crystal were observed. In order to determine the nonlinear optical coefficient of a minute-size cBN sample, a simple method based on modified transverse linear electro-optic modulation was also introduced. This approach is convenient because it is unnecessary to know the absolute intensity of a probing beam for measuring the half-wave voltage of a cBN sample. Finally, cBN’s linear electro-optic coefficient γ41=1.07×10-14 m/V and nonlinear optical coefficient d14(0,ω,-ω)=1.07×10-13 m/V were obtained. PACS 42.65.An; 42.65.Ky; 78.20.Jq |
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