Wavevector Selective Metasurfaces and Tunnel Vision Filters

Metasurfaces offer unprecedented flexibility in the design and control of light propagation, replacing bulk optical components and exhibiting exotic optical effects. One of the basic properties of the metasurfaces, which renders them as frequency selective surfaces, is the ability to transmit or ref...

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Bibliographic Details
Published in:arXiv.org 2015-02
Main Authors: Fedotov, Vassili A, Wallauer, Jan, Walther, Markus, Perino, Mauro, Papasimakis, Nikitas, Zheludev, Nikolay I
Format: Article
Language:English
Subjects:
Camouflage
Electromagnetic wave filters
Frequency selective surfaces
Light scattering
Metasurfaces
Optical components
Optical properties
Propagation
Space communication
Vision
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Summary:Metasurfaces offer unprecedented flexibility in the design and control of light propagation, replacing bulk optical components and exhibiting exotic optical effects. One of the basic properties of the metasurfaces, which renders them as frequency selective surfaces, is the ability to transmit or reflect radiation within a narrow spectral band that can be engineered on demand. Here we introduce and demonstrate experimentally in the THz domain the concept of wavevector selective surfaces -- metasurfaces transparent only within a narrow range of light propagation directions operating effectively as tunnel vision filters. Practical implementations of the new concept include applications in wavefront manipulation, observational instruments, vision and free-space communication in light-scattering environments, as well as passive camouflage.
ISSN:2331-8422
DOI:10.48550/arxiv.1502.01464