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Preparation, thermo-optic property and simulation of optical switch based on azo benzothiazole polymer

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Abstract

An azo chromophore molecule 4-[(benzothiazole-2-yl)diazenyl]phenyl-1,3-diamine (BTPD) was prepared with 2-amino benzothiazole and m-phenylenediamine by diazo-coupling reaction. Then, the chromophore molecule BTPD was polymerized with NJ-210 and isophorone diisocyanate (IPDI) to obtain novel azo benzothiazole polymer (BTPU). The structures of BTPD and BTPU were characterized using the Fourier transform infrared, UV–visible spectroscopy, DSC and TGA. The physical properties of the obtained BTPU were investigated. The refractive index (n) of BTPU was demonstrated at different temperature and wavelength (532, 650 and 850 nm) using attenuated total reflection technique. The transmission loss and dispersion characteristic of BTPU film were investigated using the CCD digital imaging devices and Sellmeyer equation. A Y-branch and 2 × 2 Mach–Zehnder interferometer (MZI) polymeric thermo-optic switches based on the thermo-optic effect of prepared BTPU were proposed and the performance of switches was simulated. The results indicated that the power consumption of the Y-branch thermo-optic switch could be only 0.6 mW. The Y-branch and MZI switching rising and falling times obtained were 8.0 and 1.8 ms.

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Acknowledgments

This project was supported by the Agricultural Independent Innovation of Jiangsu Province (CX(11)2032), China Postdoctoral Science Foundation (2011M500865), Jiangsu Key Laboratory for Chemistry of Low-Dimensional Material (JSKC12105) and the Innovation Program for Graduate Education of Jiangsu Province (CXZZ12_0696).

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Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, China

    Zhijuan Cao, Fengxian Qiu, Qing Wang, Xiaolong Xu, Jie Wang, Qian Chen & Dongya Yang

  2. Department of Physics, Jiangsu University, Zhenjiang, 212013, China

    Guorong Cao, Yijun Guan & Lin Zhuang

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  1. Zhijuan Cao
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  2. Fengxian Qiu
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  3. Qing Wang
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  4. Guorong Cao
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  5. Yijun Guan
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  6. Lin Zhuang
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  7. Xiaolong Xu
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  8. Jie Wang
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  10. Dongya Yang
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Correspondence to Fengxian Qiu.

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Cao, Z., Qiu, F., Wang, Q. et al. Preparation, thermo-optic property and simulation of optical switch based on azo benzothiazole polymer. Appl. Phys. B 111, 93–102 (2013). https://doi.org/10.1007/s00340-012-5311-3

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  • DOI: https://doi.org/10.1007/s00340-012-5311-3

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