Mechanochromic reconfigurable metasurfaces
The change of optical properties that some usually natural compounds or polymeric materials show upon the application of external stress is named mechanochromism. Herein, an artificial nanomechanical metasurface formed by a subwavelength nanowire array made of molybdenum disulfide, molybdenum oxide,...
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sg-ntu-dr.10356-1433892023-02-28T19:32:34Z Mechanochromic reconfigurable metasurfaces Karvounis, Artemios Aspiotis, Nikolaos Zeimpekis, Ioannis Ou, Jun-Yu Huang, Chung-Che Hewak, Daniel Zheludev, Nikolay I. School of Physical and Mathematical Sciences Centre for Disruptive Photonic Technologies & The Photonics Institute Science::Physics Mechanochromism Metasurfaces The change of optical properties that some usually natural compounds or polymeric materials show upon the application of external stress is named mechanochromism. Herein, an artificial nanomechanical metasurface formed by a subwavelength nanowire array made of molybdenum disulfide, molybdenum oxide, and silicon nitride changes color upon mechanical deformation. The aforementioned deformation induces reversible changes in the optical transmission (relative transmission change of 197% at 654 nm), thus demonstrating a giant mechanochromic effect. Moreover, these types of metasurfaces can exist in two nonvolatile states presenting a difference in optical transmission of 45% at 678 nm, when they are forced to bend rapidly. The wide optical tunability that photonic nanomechanical metasurfaces, such as the one presented here, possess by design, can provide a valuable platform for mechanochromic and bistable responses across the visible and near infrared regime and form a new family of smart materials with applications in reconfigurable, multifunctional photonic filters, switches, and stress sensors. Published version 2020-08-31T00:46:07Z 2020-08-31T00:46:07Z 2019 Journal Article Karvounis, A., Aspiotis, N., Zeimpekis, I., Ou, J.-Y., Huang, C.-C., Hewak, D., & Zheludev, N. I. (2019). Mechanochromic reconfigurable metasurfaces. Advanced Science, 6(21), 1900974-. doi:10.1002/advs.201900974 2198-3844 https://hdl.handle.net/10356/143389 10.1002/advs.201900974 31728279 2-s2.0-85073806497 21 6 en Advanced Science © 2019 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and repro-duction in any medium, provided the original work is properly cited. application/pdf |
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Science::Physics Mechanochromism Metasurfaces Karvounis, Artemios Aspiotis, Nikolaos Zeimpekis, Ioannis Ou, Jun-Yu Huang, Chung-Che Hewak, Daniel Zheludev, Nikolay I. Mechanochromic reconfigurable metasurfaces |
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The change of optical properties that some usually natural compounds or polymeric materials show upon the application of external stress is named mechanochromism. Herein, an artificial nanomechanical metasurface formed by a subwavelength nanowire array made of molybdenum disulfide, molybdenum oxide, and silicon nitride changes color upon mechanical deformation. The aforementioned deformation induces reversible changes in the optical transmission (relative transmission change of 197% at 654 nm), thus demonstrating a giant mechanochromic effect. Moreover, these types of metasurfaces can exist in two nonvolatile states presenting a difference in optical transmission of 45% at 678 nm, when they are forced to bend rapidly. The wide optical tunability that photonic nanomechanical metasurfaces, such as the one presented here, possess by design, can provide a valuable platform for mechanochromic and bistable responses across the visible and near infrared regime and form a new family of smart materials with applications in reconfigurable, multifunctional photonic filters, switches, and stress sensors. |
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School of Physical and Mathematical Sciences |
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School of Physical and Mathematical Sciences Karvounis, Artemios Aspiotis, Nikolaos Zeimpekis, Ioannis Ou, Jun-Yu Huang, Chung-Che Hewak, Daniel Zheludev, Nikolay I. |
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Article |
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Karvounis, Artemios Aspiotis, Nikolaos Zeimpekis, Ioannis Ou, Jun-Yu Huang, Chung-Che Hewak, Daniel Zheludev, Nikolay I. |
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Karvounis, Artemios |
title |
Mechanochromic reconfigurable metasurfaces |
title_short |
Mechanochromic reconfigurable metasurfaces |
title_full |
Mechanochromic reconfigurable metasurfaces |
title_fullStr |
Mechanochromic reconfigurable metasurfaces |
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Mechanochromic reconfigurable metasurfaces |
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mechanochromic reconfigurable metasurfaces |
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2020 |
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https://hdl.handle.net/10356/143389 |
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