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

Zwitterion-doped liquid crystal speckle reducers for immersive displays and vectorial imaging.
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用于沉浸式展示和矢量成像的糖掺杂液晶斑点还原器。

DOI:
10.1038/s41377-023-01265-5
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发表时间:
2023-09-22
影响因子:
19.4
通讯作者:
Morris, Stephen M.
Morris, Stephen M.
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Jin, Yihan;Spiller, Nathan P.;He, Chao;Faulkner, Grahame;Booth, Martin J.;Elston, Steve J.;Morris, Stephen M.

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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 (C) values of C = 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 demonstration of speckle reduction in modern vectorial laser-based imaging.
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