Fast optical rotation dispersion  measurement by using polarization axis finder and conical lens

Fujie Wang; Bing Lei; Chao Gao; Xueke Wen; Jianping Liu

doi:10.1117/12.2652131

23 January 2023 Fast optical rotation dispersion measurement by using polarization axis finder and conical lens

Fujie Wang, Bing Lei, Chao Gao, Xueke Wen, Jianping Liu

Proceedings Volume 12557, AOPC 2022: Optical Sensing, Imaging, and Display Technology; 125572M (2023) https://doi.org/10.1117/12.2652131
Event: Applied Optics and Photonics China 2022 (AOPC2022), 2022, Beijing, China

Abstract

Optical rotatory dispersion (ORD) is an important property of chiral material. How to obtain the ORD curve of chiral material quickly and accurately has attracted great attention from researchers. This work presents a measurement method of ORD based on a polarization axis finder (PAF) and a conical lens (CL). The PAF can modulate the collimated broad-spectrum beam spatially to form an “hourglass” intensity pattern, and the CL can disperse the polarization information of light of different wavelengths to different positions in space. The use of the PAF and the CL enables the ORD of the sample to be obtained with only a single image. We perform a theoretical analysis of this method to prove it is feasible and verify it experimentally with left-hand quartz (LHQ) as the sample. Both theoretical and experimental results prove that this method is a fast and effective way to determine the ORD of chiral substances.

Citation Download Citation

Fujie Wang, Bing Lei, Chao Gao, Xueke Wen, and Jianping Liu "Fast optical rotation dispersion measurement by using polarization axis finder and conical lens", Proc. SPIE 12557, AOPC 2022: Optical Sensing, Imaging, and Display Technology, 125572M (23 January 2023); https://doi.org/10.1117/12.2652131

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