Optofluidic Control of Colours with Metasurfaces

verfasst von: Diane J. Roth, Izzatjon Allayarov, Andrey Evlyukhin, Boris Chichkov, Antonio Calà Lesina, Anatoly V. Zayats
Abstract: We demonstrate theoretically and experimentally dynamic tuning of optical response of dielectric metasurfaces based on the high-sensitivity of surface lattice resonances to their surrounding environment. This tuneability is achieved by controlling a dielectric permittivity contrast between the substrate and the superstrate, which leads to two different tuning mechanisms: a spectral shift or an on/off switching of surface lattice resonances. Experimentally, we demonstrate this tuning using an optofluidic platform combining a silicon metasurface on a glass substrate and a variable water level to control the refractive index of the superstrate and show a dynamic change of the optical response of the metasurface, manifested through change of its colouring. This concept may be applied for various applications, including high-resolution dynamic displays, sensing and anticounterfeiting protection.
Organisationseinheit(en): Institut für Transport- und Automatisierungstechnik
Hannoversches Zentrum für Optische Technologien (HOT)
PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme
Institut für Quantenoptik
Externe Organisation(en): King's College London
Typ: Aufsatz in Konferenzband
Seiten: 448-449
Anzahl der Seiten: 2
Publikationsdatum: 2023
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Computernetzwerke und -kommunikation, Elektronische, optische und magnetische Materialien, Oberflächen, Beschichtungen und Folien, Instrumentierung
Elektronische Version(en): https://doi.org/10.1109/Metamaterials58257.2023.10289626 (Zugang: Geschlossen)