Highly Efficient Air‐Mode Silicon Metasurfaces for Visible Light Operation Embedded in a Protective Silica Layer (Advanced Optical Materials 11/2021).

Keywords: crystalline silicon; optical metasurfaces; visible wavelength EN crystalline silicon optical metasurfaces visible wavelength 1 1 1 06/07/21 20210601 NES 210601 This cover page depicts an air-mode-supporting metasurface based on crystalline silicon. Highly Efficient Air-Mode Silicon Metasurfaces for Visible Light Operation Embedded in a Protective Silica Layer (Advanced Optical Materials 11/2021) As introduced by Haowen Liang, Juntao Li and co-workers in article number 2002209 and shown in the cover picture, the metasurface reduces absorption losses by confining the electric field in the periphery of the silicon nanobricks, thereby achieving high transmission efficiency at 532 nm wavelength for the generation of orbital angular momentum. [Extracted from the article]