Tunable Near-Unity Light Absorption via Surface Exciton-Polaritons in Periodic Gratings of Anisotropic Polarizable Materials

M. V. Rodrigues, M. S. Barreiro, M. I. Vasilevskiy +1

Near-perfect light absorption in ultrathin films is hindered by two fundamental obstacles: the momentum mismatch that prevents resonant excitation of surface exciton-polaritons (SE…