Optically switchable photonic metasurfaces
We experimentally demonstrate an optically switchable gallium-based metasurface, in which a reversible light-induced transition between solid and liquid phases occurring in a confined nanoscale surface layer of the metal drives significant changes in reflectivity and absorption. The metasurface arch...
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sg-ntu-dr.10356-1028842023-02-28T19:31:33Z Optically switchable photonic metasurfaces Waters, R. F. Hobson, P. A. MacDonald, K. F. Zheludev, Nikolay I. School of Physical and Mathematical Sciences We experimentally demonstrate an optically switchable gallium-based metasurface, in which a reversible light-induced transition between solid and liquid phases occurring in a confined nanoscale surface layer of the metal drives significant changes in reflectivity and absorption. The metasurface architecture resonantly enhances the metal's “active plasmonic” phase-change nonlinearity by an order of magnitude, offering high contrast all-optical switching in the near-infrared range at low, μW μm−2, excitation intensities. Published version 2015-09-08T08:09:54Z 2019-12-06T21:01:37Z 2015-09-08T08:09:54Z 2019-12-06T21:01:37Z 2015 2015 Journal Article Waters, R. F., Hobson, P. A., MacDonald, K. F., & Zheludev, N. I. (2015). Optically switchable photonic metasurfaces. Applied Physics Letters, 107(8), 081102-. https://hdl.handle.net/10356/102884 http://hdl.handle.net/10220/38676 10.1063/1.4929396 en Applied Physics Letters © 2015 AIP Publishing LLC. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of AIP Publishing LLC. The published version is available at: [http://dx.doi.org/10.1063/1.4929396]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
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We experimentally demonstrate an optically switchable gallium-based metasurface, in which a reversible light-induced transition between solid and liquid phases occurring in a confined nanoscale surface layer of the metal drives significant changes in reflectivity and absorption. The metasurface architecture resonantly enhances the metal's “active plasmonic” phase-change nonlinearity by an order of magnitude, offering high contrast all-optical switching in the near-infrared range at low, μW μm−2, excitation intensities. |
| author2 |
School of Physical and Mathematical Sciences |
| author_facet |
School of Physical and Mathematical Sciences Waters, R. F. Hobson, P. A. MacDonald, K. F. Zheludev, Nikolay I. |
| format |
Article |
| author |
Waters, R. F. Hobson, P. A. MacDonald, K. F. Zheludev, Nikolay I. |
| spellingShingle |
Waters, R. F. Hobson, P. A. MacDonald, K. F. Zheludev, Nikolay I. Optically switchable photonic metasurfaces |
| author_sort |
Waters, R. F. |
| title |
Optically switchable photonic metasurfaces |
| title_short |
Optically switchable photonic metasurfaces |
| title_full |
Optically switchable photonic metasurfaces |
| title_fullStr |
Optically switchable photonic metasurfaces |
| title_full_unstemmed |
Optically switchable photonic metasurfaces |
| title_sort |
optically switchable photonic metasurfaces |
| publishDate |
2015 |
| url |
https://hdl.handle.net/10356/102884 http://hdl.handle.net/10220/38676 |
| _version_ |
1759854702183317504 |