Optical metasurfaces consist of planar subwavelength nanoantenna arrays that offer singular ability to sculpt wavefront in almost arbitrary manners. They are thereby poised to become a powerful tool enabling compact and high-performance optics. Multifunctional metasurfaces, whose optical responses vary according to the operation conditions, further allow a plurality of new functionalities unattainable with traditional optical systems. In this talk, we discuss the development of multifunctional meta-optics and demonstrations in imaging and sensing applications.
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Yang et al. (2024) studied this question.