Optical metasurfaces are planar subwavelength nanoantenna arrays engineered to provide on-demand manipulation of light, thereby enabling ultra-compact flat optics with high performance, small form-factor and new functionalities. When integrated with active elements, the pixelated, thin device architecture further facilitates dynamic tuning of local and global optical responses. Leveraging advanced materials, designs and architectures, we develop novel active and passive meta-optics capable of transforming a variety of optical systems that are traditionally bulky and complicated.
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