Tunable Perfect Anomalous Reflection in Metasurfaces with Capacitive Lumped Elements

We demonstrate tunable perfect anomalous reflection with metasurfaces incorporating lumped elements. The tunable capacitance of each element provides continuous control over the local surface reactance, allowing for controlling the evanescent field distribution and efficiently tilting the reflected...

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Bibliographic Details
Published in2018 12th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) pp. 392 - 394
Main Authors Tsilipakos, O., Liu, F., Pitilakis, A., Tasolamprou, A.C., Kwon, D.-H., Mirmoosa, M.S., Kantartzis, N.V., Economou, E.N., Kafesaki, M., Soukoulis, C.M., Tretyakov, S.A.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2018
Subjects
Absorption
Capacitance
Copper
Diffraction
Metamaterials
Optimization
Reflection
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Summary:We demonstrate tunable perfect anomalous reflection with metasurfaces incorporating lumped elements. The tunable capacitance of each element provides continuous control over the local surface reactance, allowing for controlling the evanescent field distribution and efficiently tilting the reflected wavefront away from the specular direction. The performance of the metasurface is evaluated for both TE and TM polarization and for reflection to the first and second diffraction order.
DOI:10.1109/MetaMaterials.2018.8534083