Spectral continuous tuning technique based on liquid crystal

Wang Kang; Li Zhaohai; Wang Qi

doi:10.1117/12.3006679

10 October 2023 Spectral continuous tuning technique based on liquid crystal

Wang Kang, Li Zhaohai, Wang Qi

Proceedings Volume 12799, Third International Conference on Advanced Algorithms and Signal Image Processing (AASIP 2023); 127995B (2023) https://doi.org/10.1117/12.3006679
Event: 3rd International Conference on Advanced Algorithms and Signal Image Processing (AASIP 2023), 2023, Kuala Lumpur, Malaysia

Abstract

In order to solve the mechanical error caused by manual rotation of LCVR in polarization imaging system and to obtain high spatial resolution of images, a liquid crystal based continuous spectral tuning technique is proposed in this paper. By studying the electronically controlled birefringence effect of liquid crystal, adjusting the thickness of delay slide and applying voltage field to the liquid crystal box, the electronically controlled birefringence phenomenon can be generated to change the refractive index difference of o light and e light. The phase difference between the two is modulated by the control voltage to realize the output of different wavelengths. The continuous tuning technique of liquid crystal is applied to the tuning method of spectral band. The improved tuning technique can improve the quality of the obtained images from the experimental data.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Wang Kang, Li Zhaohai, and Wang Qi "Spectral continuous tuning technique based on liquid crystal", Proc. SPIE 12799, Third International Conference on Advanced Algorithms and Signal Image Processing (AASIP 2023), 127995B (10 October 2023); https://doi.org/10.1117/12.3006679

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