Invited Article: Broadband highly efficient dielectric metadevices for polarization control | Zendy

Sergey Kruk | Zendy; Ben Hopkins | Zendy; Ivan I. Kravchenko | Zendy; Andrey E. Miroshnichenko | Zendy; Dragomir N. Neshev | Zendy; Yuri S. Kivshar | Zendy

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Invited Article: Broadband highly efficient dielectric metadevices for polarization control

Author(s) -

Sergey Kruk,

Ben Hopkins,

Ivan I. Kravchenko,

Andrey E. Miroshnichenko,

Dragomir N. Neshev,

Yuri S. Kivshar

Publication year - 2016

Publication title -

apl photonics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.094

H-Index - 34

ISSN - 2378-0967

DOI - 10.1063/1.4949007

Subject(s) - broadband , optics , dielectric , superposition principle , polarization (electrochemistry) , bandwidth (computing) , physics , scattering , optoelectronics , materials science , telecommunications , computer science , chemistry , quantum mechanics

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

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