Perovskite Metamaterials and Metasurfaces

Nanophotonics has emerged in recent years as the branch of science capable of connecting conventional optics with nanoscale phenomena. The key feature enabling this convergence is the ability of nanosized photonic objects to confine light within volumes comparable to or smaller than their physical sizes, far beyond the wavelength of the optical excitation. Proper arrangements of a large number of nanophotonic building blocks on two-dimensional landscapes, known as metamaterials and metasurfaces, allow for considerable enhancement of the response of the individual constituent parts and give access to optical functionalities, which would otherwise be unattainable.