3D Meta-Optics for Sorting Light and Image Processing

35 words abstract: Structuring optical properties with a spatial resolution much smaller than the relevant wavelength of light leads to optical structures with non-intuitive optical response. I discuss our recent progress in designing and fabricating these structures.<br/> <br/>Modern imaging systems can be enhanced in efficiency, compactness, and range of applications through introduction of multilayer nanopatterned structures for manipulation of light based on its fundamental properties. I discuss several recent implementations of this type of devices for sorting light based on wavelength, polarization and spatial modes. Then I present devices for optical image processing like edge detection with enhanced optical bandwidth. Implementations at mid infrared and shorter wavelengths is discussed.<br/> <br/> <br/><b>References</b><br/>[1] Roberts, G.; Ballew, C.; Zheng, T.; Garcia, J.C.; Camayd-Muñoz, S.; Hon, P W C; Faraon, A; 3D-Patterned Inverse-Designed Mid-Infrared Metaoptics , Nature Communications volume 14, Article number: 2768 (2023) https://www.nature.com/articles/s41467-023-38258-2<br/>[2] Ballew, C; Roberts, G; Faraon, A; Multi-dimensional wavefront sensing using volumetric meta-optics , (2023), Optics Express, Vol. 31, Issue 18, pp. 658-669 (2023), [https://doi.org/10.1364/OE.492440],<br/>[3] Camayd-Muñoz, R; Ballew, C; Roberts, G; Faraon, A; Multi-functional volumetric meta-optics for color and polarization image sensors, Optica, Vol. 7, Issue 4, pp. 280-283 (2020), [https://doi.org/10.1364/OPTICA.384228],.