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| Study of third-order nonlinear susceptibility of polySchiff base containing triphenylamine | |
| 基金项目： | 国家自然科学基金;黑龙江声自然科学基金;黑龙江教育局基金;黑龙江省杰出青年科学基金;哈尔滨青年科研项目;黑龙江大学校科研和教改项目 |
| 摘 要： | PolySchiff base containing triphenylamine has been synthesized by polycondensation and character-ized by FT-IR,NMR,UV-visible spectrometer. Measurements of the third-order optical nonlinear sus-ceptibility χ(3) by Z-scan technique have shown that the large nonlinearity is dominated by the two-photon absorption in PSB. The sign and size of real part Reχ(3) ,nonlinear refractive index n2 have been measured with the condition of 532 nm,8 ns-duration pulses to be -1.23×10-10 esu,-3.06×10-12 esu;nonlinear absorption index β and size of image part Imχ(3) to be 3.63×10-10 m/W,1.15×10-11 esu,respec-tively,so the third-order nonlinear susceptibility χ(3) is 1.19×10-11 esu. The value is larger than other polymers reported. PSB is self-focusing material and has potential application in nonlinear optic field. |
| 收稿时间： | 21 December 2005 |
| 修稿时间： | 30 May 2006 |
Study of third-order nonlinear susceptibility of polySchiff base containing triphenylamine |
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| Authors: | Niu HaiJun Wang Wen Huang YuDong Zhang YunDong Zhang YunJun Bai XuDuo Liu Yuan |
| Institution: | 1. Key Laboratory of Color and Macromolecular Chemistry, Heilongjiang University, Harbin 150080, China 2. Key Laboratory of Color and Macromolecular Chemistry, Heilongjiang University, Harbin 150080, China;Institute of Advanced Ceramic, Harbin Institute of Technology, Harbin 150001, China 3. Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China 4. Institute of Opto-electronics, Harbin Institute Technology, Harbin 150001, China |
| Abstract: | PolySchiff base containing triphenylamine has been synthesized by polycondensation and characterized by FT-IR, NMR, UV-visible spectrometer. Measurements of the third-order optical nonlinear susceptibility χ (3) by Z-scan technique have shown that the large nonlinearity is dominated by the two-photon absorption in PSB. The sign and size of real part Reχ (3), nonlinear refractive index n 2 have been measured with the condition of 532 nm, 8 ns-duration pulses to be −1.23×10−10 esu, −3.06×10−12 esu; nonlinear absorption index β and size of image part lmχ (3) to be 3.63×10−10 m/W, 1.15×10−11 esu, respectively, so the third-order nonlinear susceptibility χ (3) is 1.19×10−11 esu. The value is larger than other polymers reported. PSB is self-focusing material and has potential application in nonlinear optic field. Supported by the National Science Foundation of China (Grant No. 50502013), Heilongjiang National Science Key Foundation (Grant No. EJG0506-01), Heilongjiang Educational Bureau Foundation (Grant 11511271), Heilongjiang Youth Foundation (Grant Nos. QC05C15, QC05C06), Harbin Youth Foundation (Grant 2005AFQXJ062), and Heilongjiang University Youth Foundation (Grant QL200516) |
| Keywords: | polySchiff base triphenylamine third-order susceptibility Z-scan |
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