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Title: Optically switchable photonic metasurfaces
Authors: Waters, R. F.
Hobson, P. A.
MacDonald, K. F.
Zheludev, Nikolay I.
Issue Date: 2015
Source: Waters, R. F., Hobson, P. A., MacDonald, K. F., & Zheludev, N. I. (2015). Optically switchable photonic metasurfaces. Applied Physics Letters, 107(8), 081102-.
Series/Report no.: Applied Physics Letters
Abstract: 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.
DOI: 10.1063/1.4929396
Rights: © 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: []. 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.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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