Abstract:Multi‐foci lenses are essential components for optical communications, virtual reality display and microscopy, yet the bulkiness of conventional counterparts has significantly hindered their widespread applications. Benefiting from the unprecedented capability of metasurfaces in light modulation, metalenses are able to provide multi‐foci functionality with a more compact footprint. However, achieving imaging quality comparable to that of corresponding single‐foci metalenses at each focal point poses a challeng… Show more
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