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. 2021 Jan 27;11:2303. doi: 10.1038/s41598-021-81956-4

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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(a) Calculated focusing efficiency of the simple metalens with 20 $μ$ m diameter for the designated wavelengths under RCP illumination, where the horizontal green dashed line shows the maximum value of the FE. (b) Focusing efficiency of the hybrid metalens ( $R = 10 μ$ m) under both LCP/RCP illumination, with a maximum value of 85% shown by the dashed line.