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Issue 48, 2019
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A photo-switchable and photo-tunable microlens based on chiral liquid crystals

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Abstract

We demonstrate a photo-switchable and photo-tunable microlens based on chiral liquid crystals doped with an azobenzene chiral dopant immersed in water. A bi-stable microlens, which can be switched between a focusing state and scattering state through UV or green light, has been fabricated. The tuning properties of the microlens have also been demonstrated under light illumination. This bi-stable microlens possesses features including simple fabrication, low-cost, photo-switchability, and photo-tunability, and shows potential applications in dynamic imaging systems, biomimetic devices, wave-front sensors, micro-displays, light shaping etc.

Graphical abstract: A photo-switchable and photo-tunable microlens based on chiral liquid crystals

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Article information


Submitted
03 Sep 2019
Accepted
17 Oct 2019
First published
28 Oct 2019

J. Mater. Chem. C, 2019,7, 15166-15170
Article type
Paper

A photo-switchable and photo-tunable microlens based on chiral liquid crystals

Y. Li, Y. Liu and D. Luo, J. Mater. Chem. C, 2019, 7, 15166
DOI: 10.1039/C9TC04862F

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