Open AccessWave manipulation with magnetically tunable metasurfaces
Author(s) -
Han Yang,
Ting Yu,
Qingmin Wang,
Ming Lei
Publication year - 2017
Publication title -
scientific reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.24
H-Index - 213
ISSN - 2045-2322
DOI - 10.1038/s41598-017-05625-1
Subject(s) - rod , ferrite (magnet) , materials science , deflection angle , optics , deflection (physics) , magnetic field , optoelectronics , physics , medicine , alternative medicine , pathology , quantum mechanics , composite material
Tunable metasurfaces have emerged as an efficient approach to manipulate the wave propagation. Different from previous work concentrating on electrically tunable mechanisms, here we demonstrate a magnetically tunable metasurface composed of ferrite rods and metallic foils. By tuning the thickness of ferrite rods, metasurfaces with different rod thickness gradients are obtained. The incident wave can propagate through the metasurfaces due to the extraordinary transmission. The deflection angle of the transmission wave is not only influenced by the rod thickness gradient, but also tuned by the applied magnetic field. This approach opens a way for the design of tunable metasurfaces.