科研之友
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摘要
<正>Metasurfaces, composed of an array of subwavelength optical scatterers on a surface, have demonstrated unprecedented capabilities of manipulating the properties of incoming light (e.g., amplitude, phase, polarization)[1–3]. Among the large family of metasurfaces, geometric metasurfaces have attracted great attention due to superior phase control [4,5]. When circularly polarized light is illuminated and converted to the opposite handedness,
