Focusing Optical Waves via Graded-Epsilon-Near-Zero Metalens

V. Pacheco-Peña, Miguel Navarro-Cia, M. Beruete

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A parallel plate plasmonic waveguide is proposed in order to emulate the performance of apermittivity-near-zero metamaterial (ENZ) at optical wavelengths by working near the cut-off of the TE1mode. It is shown that the ENZ region can be tuned by simply modifying the electrical width of the dielectric spacerof the plasmonic waveguide. Also, a graded index (GRIN) epsilon-near-zero lens working at λ0=474.9 nm is designed by stacking 51 non-uniform plasmonic parallel plates, demonstrating numerically that this structure may be used to focus optical waves.
Original languageEnglish
Title of host publication10th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics – Metamaterials 2016
PublisherMetamorphose VI AISBL
Pages88-90
Number of pages3
ISBN (Print)9788894114119
DOIs
Publication statusPublished - Sep 2016

Keywords

  • Metamaterial
  • Lens
  • Plasmons

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