Resonant microwave transmission from a double layer of subwavelength metal square arrays: Evanescent handedness
Butler, Celia A.M.; Hobson, Peter A.; Hibbins, Alastair P.; et al.Sambles, J. Roy
Date: 2012
Journal
Physical Review B - Condensed Matter and Materials Physics
Publisher
American Physical Society
Publisher DOI
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Abstract
A double layer of identical subwavelength metal patch arrays is experimentally shown to be electromagnetically chiral due to the evanescent coupling of the near fields between nonchiral layers—it exhibits “evanescent handedness.” Despite each layer being intrinsically isotropic in the plane with four mirror planes orthogonal to the ...
A double layer of identical subwavelength metal patch arrays is experimentally shown to be electromagnetically chiral due to the evanescent coupling of the near fields between nonchiral layers—it exhibits “evanescent handedness.” Despite each layer being intrinsically isotropic in the plane with four mirror planes orthogonal to the plane of the structure, circular dichroism, leading to significant polarization rotation, is found in the resonant microwave transmission for any incident linear polarization.
Physics and Astronomy
Faculty of Environment, Science and Economy
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