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Optical metasurfaces for high angle steering at visible wavelengths.

ABSTRACT: Metasurfaces have facilitated the replacement of conventional optical elements with ultrathin and planar photonic structures. Previous designs of metasurfaces were limited to small deflection angles and small ranges of the angle of incidence. Here, we have created two types of Si-based metasurfaces to steer visible light to a large deflection angle. These structures exhibit high diffraction efficiencies over a broad range of angles of incidence. We have demonstrated metasurfaces working both in transmission and reflection modes based on conventional thin film silicon processes that are suitable for the large-scale fabrication of high-performance devices.

SUBMITTER: Lin D

PROVIDER: S-EPMC5442109 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature

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Optical metasurfaces for high angle steering at visible wavelengths.

Lin Dianmin D Melli Mauro M Poliakov Evgeni E Hilaire Pierre St PS Dhuey Scott S Peroz Christophe C Cabrini Stefano S Brongersma Mark M Klug Michael M

Scientific reports 20170523 1

Metasurfaces have facilitated the replacement of conventional optical elements with ultrathin and planar photonic structures. Previous designs of metasurfaces were limited to small deflection angles and small ranges of the angle of incidence. Here, we have created two types of Si-based metasurfaces to steer visible light to a large deflection angle. These structures exhibit high diffraction efficiencies over a broad range of angles of incidence. We have demonstrated metasurfaces working both in ...[more]

PMID: 28536465

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