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Title: Light Manipulations with Metasurfaces in Visible and Infrared Spectrum: Asymmetric Transmission and Tunability with Phase Change Materials
Authors: Kurt, Hamza
Özer, Ahmet
Koçer, Hasan
Keywords: Optical diode
asymmetric transmission
infrared filter
visible and infrared region
vanadium dioxide
Wood Rayleigh Anomaly
Issue Date: Jul-2018
Publisher: Institute of Electrical and Electronics Engineers Inc.
Source: Kurt, H., Ozer, A., and Kocer, H. (2018, July). Light Manipulations with Metasurfaces in Visible and Infrared Spectrum: Asymmetric Transmission and Tunability with Phase Change Materials. In 2018 20th International Conference on Transparent Optical Networks (ICTON) (pp. 1-4). IEEE.
Series/Report no.: International Conference on Transparent Optical Networks
Abstract: Metasurfaces are two dimensional planar photonic structures, which were recently proposed to alter amplitude, phase, and polarization of the light. Plasmonic and all-dielectric metasurfaces are two different types of structures with comparable advantageous and drawbacks. Three-dimensional nano array of trapezoidal shaped aluminium on a sapphire substrate is designed to construct metasurface for altering the optical behaviour of oppositely propagating light. We show that broadband and polarization independent asymmetric light propagation mechanism in metasurface configuration is feasible in the visible spectrum. The underlying physical concept is associated with the Wood Rayleigh Anomaly such that different number of higher order modes appear upon oppositely incident light. Introducing vanadium dioxide as phase change material into the metasurface structure allows dynamic control over the transmitted light within the mid-infrared spectrum. Proposed structure can be fabricated with the current nano and micro fabrication techniques and can be utilized in smart front IR windows for protecting delicate sensors used for imaging and target detecting systems.
ISBN: 978-153866604-3
ISSN: 2162-7339
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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