Geometric phase-encoded stimuli-responsive cholesteric liquid crystals for visualizing real-time remote monitoring: humidity sensing as a proof of concept

Shi-Long Li; Zhao-Yi Chen; Peng Chen; Wei Hu; Chaohong Huang; Sen-Sen Li; Xuejia Hu; Yan-Qing Lu; Lu-Jian Chen

doi:10.1038/s41377-023-01360-7

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Geometric phase-encoded stimuli-responsive cholesteric liquid crystals for visualizing real-time remote monitoring: humidity sensing as a proof of concept

Original Articles

- Geometric phase-encoded stimuli-responsive cholesteric liquid crystals for visualizing real-time remote monitoring: humidity sensing as a proof of concept
- Geometric phase-encoded stimuli-responsive cholesteric liquid crystals for visualizing real-time remote monitoring: humidity sensing as a proof of concept
- LSA 2024年13卷第2期页码：283-293
- Affiliations：
  
  1.Department of Electronic Engineering, School of Electronic Science and Engineering, Xiamen University, 361005 Xiamen, China
  2.College of Engineering and Applied Sciences, Nanjing University, 210093 Nanjing, China
  3.Fujian Key Laboratory of Ultrafast Laser Technology and Applications, Xiamen University, 361005 Xiamen, China
- Author bio：
  
  Yan-Qing Lu (yqlu@nju.edu.cn)
  Lu-Jian Chen (lujianchen@xmu.edu.cn)
- Funds：
- DOI：10.1038/s41377-023-01360-7
  中图分类号：
- 收稿日期：2023-08-08，
  
  修回日期：2023-12-04，
  
  录用日期：2023-12-13，
  
  网络出版日期：2024-01-24，
  
  纸质出版日期：2024-02-29
- Accepted：
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Geometric phase-encoded stimuli-responsive cholesteric liquid crystals for visualizing real-time remote monitoring: humidity sensing as a proof of concept[J]. LSA, 2024,13(2):283-293.

Li, S. L. et al. Geometric phase-encoded stimuli-responsive cholesteric liquid crystals for visualizing real-time remote monitoring: humidity sensing as a proof of concept. Light: Science & Applications, 13, 283-293 (2024).
Geometric phase-encoded stimuli-responsive cholesteric liquid crystals for visualizing real-time remote monitoring: humidity sensing as a proof of concept[J]. LSA, 2024,13(2):283-293. DOI： 10.1038/s41377-023-01360-7.

Li, S. L. et al. Geometric phase-encoded stimuli-responsive cholesteric liquid crystals for visualizing real-time remote monitoring: humidity sensing as a proof of concept. Light: Science & Applications, 13, 283-293 (2024). DOI： 10.1038/s41377-023-01360-7.

摘要

Abstract

Liquid crystals are a vital component of modern photonics

and recent studies have demonstrated the exceptional sensing properties of stimuli-responsive cholesteric liquid crystals. However

existing choleste

ric liquid crystal-based sensors often rely on the naked eye perceptibility of structural color or the measurement of wavelength changes by spectrometric tools

which limits their practical applications. Therefore

developing a platform that produces recognizable sensing signals is critical. In this study

we present a visual sensing platform based on geometric phase encoding of stimuli-responsive cholesteric liquid crystal polymers that generates real-time visual patterns

rather than frequency changes. To demonstrate this platform's effectiveness

we used a humidity-responsive cholesteric liquid crystal polymer film encoded with a

-plate pattern

which revealed that humidity causes a shape change in the vortex beam reflected from the encoded cholesteric liquid crystal polymers. Moreover

we developed a prototype platform towards remote humidity monitoring benefiting from the high directionality and long-range transmission properties of laser beams carrying orbital angular momentum. Our approach provides a novel sensing platform for cholesteric liquid crystals-based sensors that offers promising practical applications. The ability to generate recognizable sensing signals through visual patterns offers a new level of practicality in the sensing field with stimuli-responsive cholesteric liquid crystals. This platform might have significant implications for a broad readership and will be of interest to researchers working in the field of photonics and sensing technology.

关键词

Keywords

references

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