Invited Article: Broadband highly efficient dielectric metadevices for polarization control

  • Sergey Kruk
  • , Ben Hopkins
  • , Ivan I. Kravchenko
  • , Andrey Miroshnichenko
  • , Dragomir N. Neshev
  • , Yuri S. Kivshar

Research output: Contribution to journalArticlepeer-review

391 Scopus citations

Abstract

Metadevices based on dielectric nanostructured surfaces with both electric and magnetic Mie-type resonances have resulted in the best efficiency to date for functional flat optics with only one disadvantage: a narrow operational bandwidth. Here we experimentally demonstrate broadband transparent all-dielectric metasurfaces for highly efficient polarization manipulation. We utilize the generalized Huygens principle, with a superposition of the scattering contributions from several electric and magnetic multipolar modes of the constituent meta-atoms, to achieve destructive interference in reflection over a large spectral bandwidth. By employing this novel concept, we demonstrate reflectionless (∼90% transmission) half-wave plates, quarter-wave plates, and vector beam q-plates that can operate across multiple telecom bands with ∼99% polarization conversion efficiency.

Original languageEnglish
Article number030801
JournalAPL Photonics
Volume1
Issue number3
DOIs
StatePublished - Jun 1 2016

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