Groever, BenediktRubin, NoahMueller, J. P. BalthasarDevlin, Robert C.Capasso, Federico2018-06-272018Groever, Benedikt, Noah A. Rubin, J. P. Balthasar Mueller, Robert C. Devlin, and Federico Capasso. 2018. “High-efficiency chiral meta-lens.” Scientific Reports 8 (1): 7240. doi:10.1038/s41598-018-25675-3. http://dx.doi.org/10.1038/s41598-018-25675-3.http://nrs.harvard.edu/urn-3:HUL.InstRepos:37160411We 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%.en-USJournal Article2018-06-2710.1038/s41598-018-25675-3