Polarization dependence of the metamagnetic resonance of cut-wire-pair structure by using plasmon hybridization

Abstract

The influence of lattice constants on the electromagnetic behavior of a cut-wire-pair (CWP) structure has been elucidated. In this report, we performed both simulations and experiments to determine the influence of polarization on the metamagnetic resonance of the CWP structure. The key finding is the result of an investigation on the plasmon hybridization between the two CWs, which showed that the polarization of the incident wave was affected. Good agreement between numerical simulation and measurement is achieved.

Taming electromagnetic metamaterials for isotropic perfect absorbers

“…This could be understood since the perfect absorption peak of the diamond-like CWP is composed of two (magnetic and electric) coincided resonances, where each of these two resonances responses differently to the incident angle. 27 For example, in the TE mode the magnetic resonant frequency is determined solely by the geometric parameters, which are independent to the incident angle. On the other hand, increasing the incident angle might reduce the "free-electron" density of the effective cut-wire medium, 25 resulting in the lowered electric resonant frequency.…”