[{"year":"2016","status":"public","intvolume":"        16","issue":"11","volume":16,"pmid":1,"OA_type":"closed access","article_processing_charge":"No","_id":"21522","quality_controlled":"1","page":"7229-7234","type":"journal_article","abstract":[{"text":"In this Letter, we demonstrate highly efficient, polarization-insensitive planar lenses (metalenses) at red, green, and blue wavelengths (λ = 660, 532, and 405 nm). Metalenses with numerical apertures (NA) of 0.85 and 0.6 and corresponding efficiencies as high as 60% and 90% are achieved. These metalenses are less than 600 nm-thick and can focus incident light down to diffraction-limited spots as small as ∼0.64λ and provide high-resolution imaging. In addition, the focal spots are very symmetric with high Strehl ratios. The single step lithography and compatibility with large-scale fabrication processes make metalenses highly promising for widespread applications in imaging and spectroscopy.","lang":"eng"}],"title":"Polarization-insensitive metalenses at visible wavelengths","keyword":["Metasurface","polarization-insensitive metalenses","visible wavelength","titanium dioxide"],"article_type":"original","doi":"10.1021/acs.nanolett.6b03626","month":"10","ddc":["530"],"author":[{"first_name":"M.","full_name":"Khorasaninejad, M.","last_name":"Khorasaninejad"},{"first_name":"A. Y.","full_name":"Zhu, A. Y.","last_name":"Zhu"},{"id":"e2e68fc9-6505-11ef-a541-eb4e72cc3e82","first_name":"Charles","full_name":"Roques-Carmes, Charles","last_name":"Roques-Carmes"},{"full_name":"Chen, W. T.","last_name":"Chen","first_name":"W. T."},{"first_name":"J.","full_name":"Oh, J.","last_name":"Oh"},{"first_name":"I.","last_name":"Mishra","full_name":"Mishra, I."},{"first_name":"R. C.","last_name":"Devlin","full_name":"Devlin, R. C."},{"first_name":"F.","full_name":"Capasso, F.","last_name":"Capasso"}],"oa_version":"None","date_updated":"2026-04-15T11:53:17Z","date_published":"2016-10-24T00:00:00Z","external_id":{"pmid":["27791380"]},"publication_identifier":{"issn":["1530-6984"],"eissn":["1530-6992"]},"scopus_import":"1","language":[{"iso":"eng"}],"day":"24","publisher":"American Chemical Society","publication_status":"published","extern":"1","publication":"Nano Letters","date_created":"2026-03-30T12:22:47Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"ieee":"M. Khorasaninejad <i>et al.</i>, “Polarization-insensitive metalenses at visible wavelengths,” <i>Nano Letters</i>, vol. 16, no. 11. American Chemical Society, pp. 7229–7234, 2016.","ama":"Khorasaninejad M, Zhu AY, Roques-Carmes C, et al. Polarization-insensitive metalenses at visible wavelengths. <i>Nano Letters</i>. 2016;16(11):7229-7234. doi:<a href=\"https://doi.org/10.1021/acs.nanolett.6b03626\">10.1021/acs.nanolett.6b03626</a>","chicago":"Khorasaninejad, M., A. Y. Zhu, Charles Roques-Carmes, W. T. Chen, J. Oh, I. Mishra, R. C. Devlin, and F. Capasso. “Polarization-Insensitive Metalenses at Visible Wavelengths.” <i>Nano Letters</i>. American Chemical Society, 2016. <a href=\"https://doi.org/10.1021/acs.nanolett.6b03626\">https://doi.org/10.1021/acs.nanolett.6b03626</a>.","short":"M. Khorasaninejad, A.Y. Zhu, C. Roques-Carmes, W.T. Chen, J. Oh, I. Mishra, R.C. Devlin, F. Capasso, Nano Letters 16 (2016) 7229–7234.","ista":"Khorasaninejad M, Zhu AY, Roques-Carmes C, Chen WT, Oh J, Mishra I, Devlin RC, Capasso F. 2016. Polarization-insensitive metalenses at visible wavelengths. Nano Letters. 16(11), 7229–7234.","apa":"Khorasaninejad, M., Zhu, A. Y., Roques-Carmes, C., Chen, W. T., Oh, J., Mishra, I., … Capasso, F. (2016). Polarization-insensitive metalenses at visible wavelengths. <i>Nano Letters</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acs.nanolett.6b03626\">https://doi.org/10.1021/acs.nanolett.6b03626</a>","mla":"Khorasaninejad, M., et al. “Polarization-Insensitive Metalenses at Visible Wavelengths.” <i>Nano Letters</i>, vol. 16, no. 11, American Chemical Society, 2016, pp. 7229–34, doi:<a href=\"https://doi.org/10.1021/acs.nanolett.6b03626\">10.1021/acs.nanolett.6b03626</a>."}}]