Sinelnik, A DSamusev, K BLukashenko, StanislavYuKivshar, YuriLimonov, M FRybin, M V2021-07-290021-3640http://hdl.handle.net/1885/241384“Photonic graphene” structures—submicron two-dimensional dielectric structures with a honeycomb lattice— are fabricated by laser lithography. The transition from the regime of light scattering by a metasurface to that of Laue diffraction at a two-dimensional photonic structure in the optical range is studied experimentally and theoretically. The optical diffraction patterns make it possible to determine the number of unit cells in a finite microstructured sample with the naked eye.We are grateful to P.A. Belov and A.A. Kaplyanskii for support and useful discussions. This work was supported by the Russian Science Foundation (project no. 15-12-00040) and the Australian Research Center.application/pdfen-AU© Pleiades Publishing, Inc., 2017201710.1134/S00213640170601332020-11-23