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28 April 2023 Origami-inspired reconfigurable elastic metasurfaces
Zhenkun Lin, Serife Tol
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Proceedings Volume PC12483, Active and Passive Smart Structures and Integrated Systems XVII; PC1248301 (2023) https://doi.org/10.1117/12.2657980
Event: SPIE Smart Structures + Nondestructive Evaluation, 2023, Long Beach, California, United States
Abstract
We propose a reconfigurable elastic metasurface composed of an array of zigzag-base folded sheets with parallel corrugations to control the wavefront of the refracted flexural wave. The desired phase gradient is achieved by tailoring the folding angle of sheets and the thickness of each metasurface unit. By exploiting the dynamic properties of zigzag-base folded sheets, the reconfigurable metasurface can achieve different wavefront functions depending on the folding angle. We present a wave-focusing metasurface that can localize the flexural wave in the transmitted region at different values of the folding angle. In addition, the refracted wave can be steered in different directions by only folding the metasurface.
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Zhenkun Lin and Serife Tol "Origami-inspired reconfigurable elastic metasurfaces", Proc. SPIE PC12483, Active and Passive Smart Structures and Integrated Systems XVII, PC1248301 (28 April 2023); https://doi.org/10.1117/12.2657980
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KEYWORDS
Wavefronts
Phase modulation
Phase shift keying
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