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Plasmonic metamaterial wave retarders in reflection by orthogonally oriented detuned electrical dipoles

  • Anders Pors
  • , Michael G. Nielsen
  • , Giuseppe Della Valle
  • , Morten Willatzen
  • , Ole Albrektsen
  • , Sergey I. Bozhevolnyi
  • University of Southern Denmark
  • Polytechnic University of Milan

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We demonstrate that a pair of perpendicular electrical dipolar scatterers resonating at different frequencies can be used as a metamaterial unit cell to construct a nanometer-thin retarder in reflection, designing nanocross and nanobrick plasmonic configurations to function as reflecting quarter-wave plates at ∼1520 and 770nm, respectively. The design is corroborated experimentally with a monolayer of gold nanobricks, transforming linearly polarized incident radiation into circularly polarized radiation at ∼780nm.

© 2011 Optical Society of America.

Original languageEnglish
JournalOptics Letters
Volume36
Issue number9
Pages (from-to)1626-1628
ISSN0146-9592
DOIs
Publication statusPublished - 2011
Externally publishedYes

Keywords

  • Metamaterials
  • Monolayers
  • Plasmons

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