Dynamically actuated soft heliconical architecture via frequency of electric fields

Binghui Liu, Cong-Long Yuan, Hong-Long Hu, Hao Wang, Yu-Wen Zhu, Pei-Zhi Sun, Zhi-Ying Li, Zhi-Gang Zheng () and Quan Li ()
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Binghui Liu: East China University of Science and Technology
Cong-Long Yuan: East China University of Science and Technology
Hong-Long Hu: East China University of Science and Technology
Hao Wang: Kent State University
Yu-Wen Zhu: East China University of Science and Technology
Pei-Zhi Sun: East China University of Science and Technology
Zhi-Ying Li: East China University of Science and Technology
Zhi-Gang Zheng: East China University of Science and Technology
Quan Li: Kent State University

Nature Communications, 2022, vol. 13, issue 1, 1-10

Abstract: Abstract Dynamic electric field frequency actuated helical and spiral structures enable a plethora of attributes for advanced photonics and engineering in the contemporary era. Nevertheless, leveraging the frequency responsiveness of adaptive devices and systems within a broad dynamic range and maintaining restrained high-frequency induced heating remain challenging. Herein, we establish a frequency-actuated heliconical soft architecture that is quite distinct from that of common frequency-responsive soft materials. We achieve reversible modulation of the photonic bandgap in a wide spectral range by delicately coupling the frequency-dependent thermal effect, field-induced dielectric torque and elastic equilibrium. Furthermore, an information encoder prototype without the aid of complicated algorithm design is established to analogize an information encoding and decoding process with a more convenient and less costly way. A technique for taming and tailoring the distribution of the pitch length is exploited and embodied in a prototype of a spatially controlled soft photonic cavity and laser emission. This work demonstrates a distinct frequency responsiveness in a heliconical soft system, which may not merely inspire the interest in field-assisted bottom-up molecular engineering of soft matter but also facilitate the practicality of adaptive photonics.

Date: 2022
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DOI: 10.1038/s41467-022-30486-2

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