High-efficiency chiral meta-lens

Benedikt Groever, Noah A. Rubin, J. P. Balthasar Mueller, Robert C. Devlin, Federico Capasso

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

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%.
Original languageEnglish (US)
JournalScientific Reports
Volume8
Issue number1
DOIs
StatePublished - May 8 2018
Externally publishedYes

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