Abstract
Nature of light as an electromagnetic wave with transverse components has been confirmed using optical polarizers, which are sensitive to the electric field orientation only. Recent advances in optical technologies in nanometer scale demand their magnetic counterpart: optical magnetic polarizers. Here we experimentally establish the optical magnetic field polarization as a separate entity from the electric field polarization by showing that subwavelength circular metallic apertures predominantly sense the magnetic field component of light.
© 2011 AOS
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