Resonant microwave transmission from a double layer of subwavelength metal square arrays: Evanescent handedness
CAM Butler, PA Hobson, AP Hibbins… - Physical Review B …, 2012 - APS
CAM Butler, PA Hobson, AP Hibbins, JR Sambles
Physical Review B—Condensed Matter and Materials Physics, 2012•APSA 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.
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.
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.
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