Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/83055
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dc.contributor.authorNagasaki, Yusukeen
dc.contributor.authorGholipour, Behraden
dc.contributor.authorOu, Jun-Yuen
dc.contributor.authorTsuruta, Masanorien
dc.contributor.authorPlum, Ericen
dc.contributor.authorMacDonald, Kevin F.en
dc.contributor.authorTakahara, Junichien
dc.contributor.authorZheludev, Nikolay I.en
dc.date.accessioned2019-01-28T04:33:14Zen
dc.date.accessioned2019-12-06T15:10:58Z-
dc.date.available2019-01-28T04:33:14Zen
dc.date.available2019-12-06T15:10:58Z-
dc.date.issued2018en
dc.identifier.citationNagasaki, Y., Gholipour, B., Ou, J.-Y., Tsuruta, M., Plum, E., MacDonald, K. F., . . . Zheludev, N. I. (2018). Optical bistability in shape-memory nanowire metamaterial array. Applied Physics Letters, 113(2), 021105-. doi:10.1063/1.5025400en
dc.identifier.issn0003-6951en
dc.identifier.urihttps://hdl.handle.net/10356/83055-
dc.description.abstractNon-volatile temperature-induced structural phase transitions such as those found in chalcogenide glasses are known to lead to strong changes in optical properties and are widely used in rewritable optical disk technology. Herein, we demonstrate that thermally activated optical memory can be achieved via the nanostructural reconfiguration of a metallic nanowire metamaterial array made from a shape-memory alloy: A nickel-titanium film of nanoscale thickness structured on the subwavelength scale exhibits bistability of its optical properties upon temperature cycling between 30 °C and 210 °C. The structure, comprising an array of NiTi nanowires coated with a thin film of gold to enhance its plasmonic properties, can exist in two non-volatile states presenting an optical reflectivity differential of 12% via nanoscale mutual displacements of alternating nanowires in the structure. Such all-metal shape-memory photonic gratings and metamaterials may find applications in bistable optical devices.en
dc.description.sponsorshipMOE (Min. of Education, S’pore)en
dc.format.extent4 p.en
dc.language.isoenen
dc.relation.ispartofseriesApplied Physics Lettersen
dc.rights© 2018 The Author(s). All rights reserved. This paper was published by AIP Publishing in Applied Physics Letters and is made available with permission of The Author(s).en
dc.subjectDRNTU::Science::Physicsen
dc.subjectOptical Bistabilityen
dc.subjectNanowiresen
dc.titleOptical bistability in shape-memory nanowire metamaterial arrayen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
dc.contributor.researchCentre for Disruptive Photonic Technologies (CDPT)en
dc.contributor.researchThe Photonics Instituteen
dc.identifier.doi10.1063/1.5025400en
dc.description.versionPublished versionen
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