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. 2022 Apr 6;12:5832. doi: 10.1038/s41598-022-09680-1

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© The Author(s) 2022

Open Access This 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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Experimental proof-of-principle observations of our metasurface waveguide display. (a) Original input image, from the International Committee for Display Metrology (ICDM) test pattern, sourced from VESA flat-panel display measurement (FPDM) standard. (b) Green mono-MOE smart glass output green image with only green laser input. (c) Color-MOE smart glass output image with red, green and blue laser input. (d) Optical engine and optical lens coupling interface—metasurface demonstration, with projected image at the retina-equivalent white screen location. Note that the camera photographs (b–d) and documents printouts are displayed in lower resolution than actual viewing in live-operation. The modulation transfer function (Fig. 6) is the more rigorous demonstration of the metasurface glass waveguide display performance.