Zwitterion-doped liquid crystal speckle reducers for immersive displays and vectorial imaging

Yihan Jin; Nathan P. Spiller; Chao He; Grahame Faulkner; Martin J. Booth; Steve J. Elston; Stephen M. Morris

doi:10.1038/s41377-023-01265-5

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Zwitterion-doped liquid crystal speckle reducers for immersive displays and vectorial imaging

Original Articles

- Zwitterion-doped liquid crystal speckle reducers for immersive displays and vectorial imaging
- Zwitterion-doped liquid crystal speckle reducers for immersive displays and vectorial imaging
- LSA 2023年12卷第11期页码：2363-2377
- Affiliations：
  
  Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, UK
- Author bio：
  
  Chao He (chao.he@eng.ox.ac.uk)
  Steve J. Elston (steve.elston@eng.ox.ac.uk)
  Stephen M. Morris (stephen.morris@eng.ox.ac.uk)
- Funds：
- DOI：10.1038/s41377-023-01265-5
  中图分类号：
- 纸质出版日期：2023-11-30，
  
  网络出版日期：2023-09-22，
  
  收稿日期：2023-02-24，
  
  修回日期：2023-08-11，
  
  录用日期：2023-08-20
- Accepted：
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Zwitterion-doped liquid crystal speckle reducers for immersive displays and vectorial imaging[J]. LSA, 2023,12(11):2363-2377.

Jin, Y. H. et al. Zwitterion-doped liquid crystal speckle reducers for immersive displays and vectorial imaging. Light: Science & Applications, 12, 2363-2377 (2023).
Zwitterion-doped liquid crystal speckle reducers for immersive displays and vectorial imaging[J]. LSA, 2023,12(11):2363-2377. DOI： 10.1038/s41377-023-01265-5.

Jin, Y. H. et al. Zwitterion-doped liquid crystal speckle reducers for immersive displays and vectorial imaging. Light: Science & Applications, 12, 2363-2377 (2023). DOI： 10.1038/s41377-023-01265-5.

摘要

Abstract

Lasers possess many attractive features (e.g.

high brightness

narrow linewidth

well-defined polarization) that make them the ideal illumination source for many different scientific and technological endeavors relating to imaging and the display of high-resolution information. However

their high-level of coherence can result in the formation of noise

referred to as speckle

that can corrupt and degrade images. Here

we demonstrate a new electro-optic technology for combatting laser speckle using a chiral nematic liquid crystal (LC) dispersed with zwitterionic dopants. Results are presented that demonstrate when driven at the optimum electric field conditions

the speckle noise can be reduced by

90% resulting in speckle contrast (

) values of

= 0.07

which is approaching that required to be imperceptible to the human eye. This LC technology is then showcased in an array of different display and imaging applications

including a demonstrat

ion of speckle reduction in modern vectorial laser-based imaging.

关键词

Keywords

references

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