Optical constant determination of cross-linked polystyrene in the infrared

Jianfeng Liang; Min Tu; Wenyuan Liu; Zhi Qiao; Gangqiang Cui; Wenyu Peng

doi:10.1117/12.2292416

12 January 2018 Optical constant determination of cross-linked polystyrene in the infrared

Jianfeng Liang, Min Tu, Wenyuan Liu, Zhi Qiao, Gangqiang Cui, Wenyu Peng

Proceedings Volume 10623, 2017 International Conference on Optical Instruments and Technology: IRMMW-THz Technologies and Applications; 106230B (2018) https://doi.org/10.1117/12.2292416
Event: International Conference on Optical Instruments and Technology 2017, 2017, Beijing, China

Abstract

Cross-linked polystyrene is a kind of thermosetting plastic which has excellent dielectric properties and high breakdown voltage. In this paper, cross-linked polystyrene and polystyrene were analyzed by Fourier transform infrared spectroscopy (FTIR), and the reflective spectra were measured. Subsequent Kramers-Kronig analysis provided the dispersion of the refractive index and the absorption index across the infrared region. The results showed that the refractive index of cross-linked polystyrene decreased rapidly from 1.5 to 1.1 in the spectral region 100cm^-1-4000cm^-1, which was much lower than that of polystyrene (around 1.5).

Citation Download Citation

Jianfeng Liang, Min Tu, Wenyuan Liu, Zhi Qiao, Gangqiang Cui, and Wenyu Peng "Optical constant determination of cross-linked polystyrene in the infrared", Proc. SPIE 10623, 2017 International Conference on Optical Instruments and Technology: IRMMW-THz Technologies and Applications, 106230B (12 January 2018); https://doi.org/10.1117/12.2292416

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