Experimental demonstration of negative magnetic permeability in the far-infrared frequency regime

Gundogdu, T. F.; Tsiapa, I.; Kostopoulos, A.; Konstantinidis, G.; Katsarakis, N.; Penciu, R. S.; Kafesaki, Maria; Economou, E. N.; Koschny, Thomas; Soukoulis, Costas M.

doi:10.1063/1.2335955

Cited by 49 publications

(26 citation statements)

References 17 publications

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“…4͑c͒ and 4͑d͔͒. Commonly only two of these cases have been 21 the analog of excitation ͑i͒ and ͑iii͒ have been discussed. This anisotropy is related to the dispersion of the fishnet polaritonic crystal, being different for both x and y direction.…”

Section: Tilted Response Of the Fishnet Metamaterialsmentioning

confidence: 99%

Tilted response of fishnet metamaterials at near-infrared optical wavelengths

et al. 2010

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We study experimentally the transmission properties of Au-TiO 2 -Au fishnet metamaterials in the nearinfrared spectral range and analyze the change in the transmission resonances at varying angles of incidence and different input polarizations. The results show that the main transmission peak through the fishnet is due to the excitation of hole modes. This high-transmission region is significantly influenced by surface plasmon coupling when the incident electric field has a component normal to the metal plates, while little change with respect to tilt is observed when the electric field is parallel to the two metal films of the fishnet.

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Section: Tilted Response Of the Fishnet Metamaterialsmentioning

confidence: 99%

Tilted response of fishnet metamaterials at near-infrared optical wavelengths

et al. 2010

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“…There are only a few attempts where the MMs are probed by obliquely incident fields and for different polarizations, mostly restricted to transmission and reflection measurements. [16][17][18][19][20] Since even for an isotropic medium the reflection and transmission coefficients evidently depend on the angle of incidence, it is hardly possible to draw conclusion with respect to the isotropic behavior of the respective MM. To ultimately verify whether a highly symmetric metamaterial behaves optically isotropic, it is necessary to calculate the dispersion relation = ͑k x , k y , k z ͒ where its isofrequency surface k z = k z ͑k x , k y , = const.͒ governs the diffraction and refraction properties of the MM.…”

Section: Introductionmentioning

confidence: 99%

High symmetry versus optical isotropy of a negative-index metamaterial

et al. 2010

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Optically isotropic metamaterials ͑MMs͒ are required for the implementation of subwavelength imaging systems. At first glance one would expect that their design should be based on unit cells exhibiting a cubic symmetry being the highest crystal symmetry. It is anticipated that this is a sufficient condition since it is usually assumed that light does not resolve the spatial details of MM but experiences the properties of an effective medium, which is then optically isotropic. In this work we challenge this assumption by analyzing the isofrequency surfaces of the dispersion relation of the split cube in carcass negative index MM. We show that this MM is basically optically isotropic but not in the spectral domain where it exhibits negative refraction. The primary goal of this contribution is to introduce a tool that allows to probe a MM against optical isotropy.

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“…Correspondingly, several analysis modals are employed to unravel the resonance property in the SRR transmission spectra, such as the physical intuition initiated by Pendry et al [11], lumped element equivalent circuit model proposed by Martin et al [12], and improved by Aznar et al [13]. Meanwhile, lots of numerical simulations as well as experimental verifications are carried out for the metamaterial design [14][15][16]. Especially, Simovski et al clarified the physical meaning of local constitutive parameters of metamaterials [17], and discussed Bloch material parameters of magneto-dielectric metamaterials [18].…”

Section: Causality In the Resonance Behavior Of Metamaterialsmentioning

confidence: 99%