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Metasurface polarization splitter.


ABSTRACT: Polarization beam splitters, devices that separate the two orthogonal polarizations of light into different propagation directions, are among the most ubiquitous optical elements. However, traditionally polarization splitters rely on bulky optical materials, while emerging optoelectronic and photonic circuits require compact, chip-scale polarization splitters. Here, we show that a rectangular lattice of cylindrical silicon Mie resonators functions as a polarization splitter, efficiently reflecting one polarization while transmitting the other. We show that the polarization splitting arises from the anisotropic permittivity and permeability of the metasurface due to the twofold rotational symmetry of the rectangular unit cell. The high polarization efficiency, low loss and low profile make these metasurface polarization splitters ideally suited for monolithic integration with optoelectronic and photonic circuits.This article is part of the themed issue 'New horizons for nanophotonics'.

SUBMITTER: Slovick BA 

PROVIDER: S-EPMC5321832 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature

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Metasurface polarization splitter.

Slovick Brian A BA   Zhou You Y   Yu Zhi Gang ZG   Kravchenko Ivan I II   Briggs Dayrl P DP   Moitra Parikshit P   Krishnamurthy Srini S   Valentine Jason J  

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 20170301 2090


Polarization beam splitters, devices that separate the two orthogonal polarizations of light into different propagation directions, are among the most ubiquitous optical elements. However, traditionally polarization splitters rely on bulky optical materials, while emerging optoelectronic and photonic circuits require compact, chip-scale polarization splitters. Here, we show that a rectangular lattice of cylindrical silicon Mie resonators functions as a polarization splitter, efficiently reflecti  ...[more]

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