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High-efficiency chiral meta-lens.


ABSTRACT: We present here a compact metasurface lens element that enables simultaneous and spatially separated imaging of light of opposite circular polarization states. The design overcomes a limitation of previous chiral lenses reliant on the traditional geometric phase approach by allowing for independent focusing of both circular polarizations without a 50% efficiency trade-off. We demonstrate circular polarization-dependent imaging at visible wavelengths with polarization contrast greater than 20dB and efficiencies as high as 70%.

SUBMITTER: Groever B 

PROVIDER: S-EPMC5940891 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature

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High-efficiency chiral meta-lens.

Groever Benedikt B   Rubin Noah A NA   Mueller J P Balthasar JPB   Devlin Robert C RC   Capasso Federico F  

Scientific reports 20180508 1


We present here a compact metasurface lens element that enables simultaneous and spatially separated imaging of light of opposite circular polarization states. The design overcomes a limitation of previous chiral lenses reliant on the traditional geometric phase approach by allowing for independent focusing of both circular polarizations without a 50% efficiency trade-off. We demonstrate circular polarization-dependent imaging at visible wavelengths with polarization contrast greater than 20dB a  ...[more]

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