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Optica Publishing Group
  • Frontiers in Optics 2008/Laser Science XXIV/Plasmonics and Metamaterials/Optical Fabrication and Testing
  • OSA Technical Digest (CD) (Optica Publishing Group, 2008),
  • paper JWD37
  • https://doi.org/10.1364/OFT.2008.JWD37

A Study of the Long Propagation Range Bessel Beam Generated by a Subwavelength Annular Aperture Structure

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Abstract

The subwavelength annular apertures (SAA) made on metallic layers by electron beam lithography with metal lift-off processes have been demonstrated. We have experimentally enhanced the Bessel beam distance through the SAA structure with large diameters.

© 2008 Optical Society of America

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