Abstract
As an artificial planar composite medium, optical metasurfaces exhibit powerful multidimensional optical modulations at the subwavelength scale. With the aid of intelligent algorithms, versatile wavefront engineering and holographic multiplexing based on optical metasurfaces are being intensively developed. Micronano manufacturing technology provides indispensable support for proof-of-concept and mass production. With the support of these advanced technologies, optical metasurfaces have been developed for a wide range of applications and their compactness, versatility, and compatibility have been fully demonstrated. In this Perspective, we summarize recent advances. In addition, we discuss the challenges and prospects of optical metasurfaces.
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