Split ring aperture for optical magnetic field enhancement by radially polarized beam

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چکیده

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Split ring aperture for optical magnetic field enhancement by radially polarized beam.

Inspired by Babinet's principle, we proposed a new plasmonic structure for enhancing the optical magnetic field, i.e. split ring aperture, whose complement is the well-known split ring. The split ring aperture exhibits a much better performance under radially polarized excitation than linearly polarized excitation. We attribute the ultra-high intensity enhancement in magnetic field to the symme...

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ژورنال

عنوان ژورنال: Optics Express

سال: 2013

ISSN: 1094-4087

DOI: 10.1364/oe.21.006845