Superscattering of pseudospin-1 wave in photonic lattice

Abstract

We uncover a superscattering behavior of pseudospin-1 wave from weak scatterers in the subwavelength regime where the scatterer size is much smaller than wavelength. The phenomenon manifests itself as unusually strong scattering characterized by extraordinarily large values of the cross section even for arbitrarily weak scatterer strength. We establish analytically and numerically that the physical origin of superscattering is revival resonances, for which the conventional Born theory breaks down. The phenomenon can be experimentally tested using synthetic photonic systems.

8 pages, 5 figures

References in corpus (6)

• Observation of a localized flat-band state in a photonic Lieb lattice
• Observation of bound states in Lieb photonic lattices
• Do Linear Dispersions of Classical Waves Mean Dirac Cones?
• Topological Phases for Fermionic Cold Atoms on the Lieb Lattice
• Scattering of two-dimensional massless Dirac electrons by a circular potential barrier
• Topology-induced phase transitions in quantum spin Hall lattices

Cited by in corpus (6)

• Optical response of two-dimensional Dirac materials with a flat band
• Non-equilibrium transport in the pseudospin-1 Dirac-Weyl system
• High-degeneracy points protected by site-permutation symmetries
• Robustness of persistent currents in two-dimensional Dirac systems with disorders
• Lieb lattices and pseudospin-1 dynamics under barrier- and well-like electrostatic interactions
• Simulating the Klein tunneling of pseudospin-one Maxwell particles with trapped ions