Generalized Magnetic Mirrors
A single layer of dielectric cylinders can not only totally reflect the incident waves, but also flexibly manipulate the phase of the reflected waves. It can function as a perfect magnetic mirror, which maintains the phase of electric fields upon reflection and thus generate hot-spots at the mirror surface, or as a perfect electric mirror that reverses the phase and consequently produce interfacial cold-spots. The mirrors type is not decided by the order (dipole, quadrupole and so forth) or nature (electric or magnetic), but the scattering parity of the modes supported, e.g. generalized electric (magnetic) mirrors can be obtained by resonantly exciting magnetic (electric) quadrupoles. This picture is also associated with our submission to OPN "Photics in 2017" special issue. The submission is titled "Generalized magnetic mirrors" with a manuscript ID 305633.
—Wei Lu, College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, China
20 Nov 2017