Shape optimization for high efficiency metasurfaces. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Shape optimization for high efficiency metasurfaces.

Caption

a, Illustration of a metasurface formed by lithographically patterning a glass surface with an array of subwavelength features (meta-atoms), to focus an incoming light beam. By configuring the specific pattern and shapes of the meta-atoms, the metasurface can perform different transformations as illustrated in b. Amplitude, phase and polarization transformations as well as multi-functions consolidated in a single surface. c, Example of a shape-optimized metalens, where each meta-atom’s shape is inverse designed to maximize efficiency. d. Scanning electron microscope showing an example of a fabricated shape-optimized metasurface.

Credit

Paulo Dainese, Louis Marra, Davide Cassara, Ary Portes, Jaewon Oh, Jun Yang, Alfonso Palmieri, Janderson R. Rodrigues, Ahmed H. Dorrah, and Federico Capasso

Usage Restrictions

Credit must be given to the creator.

License

CC BY

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