Flat optics: from high-performance metalenses to structured light (Conference Presentation)

Advances in dielectric metalenses in the visible which correct spherical aberration, coma and chromatic aberrations will be presented. The latter have been corrected at multiple wavelengths, in a LED bandwidth and broadband across the visible. Multifunctional components such as metalenses for chiral imaging, ultracompact spectrometers and axicons to create arbitrary Bessel beams will be presented along with broadband high efficiency holograms in the visible and spin-to-total angular momentum converters that create complex helical beams.