Flat Optics: Arbitrary Wavefront Control with Metasurfaces and Metalenses for High Volume Applications

We will discuss metasurfaces that enable light’s spin and orbital angular momentum to evolve along the propagation direction and nonlocal supercell designs that demonstrate multiple independent optical functions at arbitrary large deflection angles with high efficiency. 2D phase and polarization singularities (“structured dark”) have been realized, as well as 0D singularities. I will present active metasurfaces for high-speed optical modulation at telecom wavelengths based on electrooptic polymers and Si and give the state-of-the-art of commercial metalenses including their high-volume manufacturing for consumer electronics. Finally, we will discuss our recent work on metalenses for the EUV (50 nm wavelength) based on vacuum guiding.