Broadband Negative Permeability by Hybridized Cut-Wire Pair Metamaterials

Abstract

We introduce a simple but general mechanism to realize the dual magnetic resonance exhibiting a broadband negative permeability. A satisfactory explanation, based on the second-order hybridization of symmetric metamaterials, for resonant splitting is given. It is manifested that the geometric correlation plays a vital role in controlling the hybridization strength. Transfer matrix simulations and equivalent circuit model analysis are performed to corroborate our idea. #

Broadband negative refractive index obtained by plasmonic hybridization in metamaterials

“…A more convenient way to create a broadband negative permeability and pave the way for practical implementations is using the hybridization of interacting identical resonators. 20,21 In this letter, the left-handed behavior of two metamaterials, the combined dimer (CD) and the fishnet dimer (FD), is investigated experimentally in the GHz range. The term dimer refers to a configuration consisting of two identical monomers that are separated by an air gap.…”

“…The electromagnetic response of a CWP dimer can, analogously, be described by second-order hybridization. 20,21 If two CWPs are close to each other, interaction between the degenerated jw À i modes leads to jw ÀÀ i and jw Àþ i modes. For transversely ordered electrical dipoles, the lower frequency jw ÀÀ i and higher frequency jw Àþ i are associated with second-order symmetric and antisymmetric modes, respectively.…”

Broadband negative permeability using hybridized metamaterials: Characterization, multiple hybridization, and terahertz response

“…17 The hybridization picture can also be applied to create higher order eigenmodes in a CWP dimer. 12 The electromagnetic response of the CWP dimer can be predicted using a second-order hybridization scheme as shown in Fig. 2.…”

“…11 In the search for alternatives to the current approaches, we recently have introduced a general mechanism to achieve broadband negative permeability using a cut-wire-pair (CWP) dimer. 12 By exploiting the interaction between two identical CWP monomers, a hybridized magnetic resonance is predicted to split up and the frequency range that shows a negative permeability becomes wider.…”

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

“…The response of complex micro-and nano-structures can be described by a collection of the hybridized plasmons of the interacting system arising from a simpler structure. Recently, by breaking the symmetry of paired CWs [8], researchers were able to explain the effects of horizontal and vertical alignment on the transmission of CWP by using the plasmon interaction. Generally, the strength of the plasmon hybridization greatly depends on the symmetric alignment of paired CWs.…”