articleNano LettersAug 17, 2015GREEN OA

High-Efficiency All-Dielectric Metasurfaces for Ultracompact Beam Manipulation in Transmission Mode

MIMikhail I. ShalaevJSJingbo SunATA. TsukernikAPApra PandeyKSKirill S. Nikolskiy

University at Buffalo, State University of New York · University of Toronto · +2 more institutions

PubMed
Indexed inarxivcrossrefpubmed

Abstract

Metasurfaces are two-dimensional structures enabling complete control on light amplitude, phase, and polarization. Unlike plasmonic metasurfaces, silicon structures facilitate high transmission, low losses, and compatibility with existing semiconductor technologies. We experimentally demonstrate two examples of high-efficiency polarization-sensitive dielectric metasurfaces with 2π phase control in transmission mode (45% transmission efficiency for the vortex converter and 36% transmission efficiency for the beam steering device) at telecommunication wavelengths. Silicon metasurfaces are poised to enable a versatile platform for the realization of all-optical circuitry on a chip.

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Topics & keywords

Topics
Keywords
  • Dielectric
  • Transmission (telecommunications)
  • Materials science
  • Optoelectronics
  • Mode (computer interface)
  • Beam (structure)
  • Optics
  • Nanotechnology
UN Sustainable Development Goals
  • Affordable and clean energy
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