An improved fitting method of birefringence dispersion for liquid crystal variable retarder

Tiecheng Liu; Jingpei Hu; Linglin Zhu; Ruyi Zhou; Chong Zhang; Guiyun Li; Sida Liang; Aijun Zeng; Huijie Huang

doi:10.1117/12.2533758

17 May 2019 An improved fitting method of birefringence dispersion for liquid crystal variable retarder

Tiecheng Liu, Jingpei Hu, Linglin Zhu, Ruyi Zhou, Chong Zhang, Guiyun Li, Sida Liang, Aijun Zeng, Huijie Huang

Proceedings Volume 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019); 111702T (2019) https://doi.org/10.1117/12.2533758
Event: Fourteenth National Conference on Laser Technology and Optoelectronics, 2019, Shanghai, China

Abstract

In order to accurately obtain the birefringence dispersion of liquid crystal variable retarder (LCVR) with wavelength ranges from 414nm to 702nm. Here, we propose an improved fitting method of birefringence dispersion by using the theory of polarized light interference. The birefringence of LCVR in 478nm is 0.3863 based on the improved method. The experimental result is 0.3862 and the percentage error is 0.026%, compared to the 1.761% of the original fitting method. This work provides an improved way to character the birefringence dispersion of LCVR.

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Tiecheng Liu, Jingpei Hu, Linglin Zhu, Ruyi Zhou, Chong Zhang, Guiyun Li, Sida Liang, Aijun Zeng, and Huijie Huang "An improved fitting method of birefringence dispersion for liquid crystal variable retarder", Proc. SPIE 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019), 111702T (17 May 2019); https://doi.org/10.1117/12.2533758

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KEYWORDS

Birefringence

Liquid crystals

Wave plates

Near infrared

Solids

Error analysis

Optoelectronics

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