We present experimental results on metasurfaces capable of performing analog image processing. Specifically, we show designs for 1st and 2nd order spatial differentiation enabling low power and real-time edge detection.

Resonant Nanophotonics

Cordaro, A., Kwon, H., Sounas, D., Koenderink, F., Polman, A., & Alù, A. (2019). Dielectric metasurfaces performing all-analog computing. In Conference on Lasers and Electro-Optics, OSA Technical Digest (Optical Society of America) FTh3M.2. doi:10.1364/cleo_qels.2019.fth3m.2