title: Broadband unidirectional cloak designed by eikonal theory.
abstract: A method for designing optical device is derived based on the eikonal theory, which could obtain the eikonal distribution on a curved surface according to the propagation characteristics of the subsequent light wave. Then combining with the phase matching condition, we designed a broadband unidirectional cloak. Different from the reported unidirectional cloaks, the proposed one could be used for coherent wave and has continuous broadband performance. Moreover, it has three cloaked regions. Full-wave simulation results verify the properties of the cloak.
authors.forename: Xuan
authors.initials: X
authors.lastname: Liu
authors.forename: Xiaojia
authors.initials: X
authors.lastname: Wu
authors.forename: Luoning
authors.initials: L
authors.lastname: Zhang
authors.forename: Jing
authors.initials: J
authors.lastname: Zhou