Controllable electromagnetic transmission based on dual-metallic grating structures composed of subwavelength slits

Chen, Cheng; Chen, Jing; Wu, Qun; Ren, Fangfang; Xu, Ji; Fan, Ya-Xian; Wang, Hui-Tian

doi:10.1063/1.2784175

Cited by 79 publications

(37 citation statements)

References 18 publications

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“…19 The effect of lateral displacement on double mesh layers in the visible regime was studied by Cheng et al in 2007. 20 He et al conducted an almost identical study to that presented in this paper, albeit at optical frequencies reaching similar conclusions, 21 as did Miyamaru and Hangyo in the terahertz regime. 22 A common motivation behind the study of double-mesh-layer structures in the optical regime appears to be the creation of negative index materials.…”

Section: Introductionmentioning

confidence: 51%

Electromagnetic response of closely spaced metal meshes

2012

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The electromagnetic transmittance of a double layer of identical square arrays of square holes (mesh) in a perfectly conducting sheet is analytically modeled using a modal matching technique. The structure supports families of standing-wave modes together with surface modes that, close to the onset of diffraction, interact with each other. For frequencies below the onset of diffraction, it is the strength of this interaction mediated by evanescent diffraction in the near fields that dictates the electromagnetic response, which is studied as a function of mesh separation and the lateral misalignment between the meshes.

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Section: Introductionmentioning

confidence: 51%

Electromagnetic response of closely spaced metal meshes

2012

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“…To gain more functionality for the versatile photonic and plasmonic applications, researchers have explored the plasmon resonances in stacked metal [24,25], graphene [26], and graphene-metal [27][28][29] structures. In such metamaterials, plasmon interaction among neighboring metal/graphene structures becomes more significant and important; the concept of plasmon hybridization has been proposed to exploit transmission characteristics.…”

Section: Introductionmentioning

confidence: 99%

Plasmon Resonances in a Stacked Pair of Periodic Graphene Hole Arrays

Wang

et al. 2015

Plasmonics

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In this paper, we investigate the plasmon resonances in a stacked pair of periodic graphene hole arrays by using charge oscillation picture. It is found that the plasmon resonances can be controlled by changing the longitudinal interval G between two arrays, and the lateral displacements L x and L y , which are parallel and perpendicular to the polarization direction of the incident light, respectively. The plasmon resonance can be tuned over a wide wavelength range by a small change of G due to its influence on the strength of electromagnetic coupling between two arrays. The lateral displacement L x causes new plasmon resonance modes, originating from the appearance of new electromagnetic coupling manners, while the lateral displacement L y leads to the splitting of plasmon resonance mode, which results from two different electromagnetic coupling manners. Our study gives an insight into the physical mechanism of plasmon resonances in two graphene hole arrays, and our findings may hold great promise in designing graphenebased plasmonic devices and metamaterials.

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“…Here, the spectrum for the non-modulated structure of r = 0 should be interpreted in terms of FabryPerot-like waveguide mode resonances, 6,7 as investigated for similar double-layered structures in previous works. 9,10 The transmission band with twin peaks at around 0.07 and 0.11 THz should be related to what are called the half-wavelength and one-wavelength resonances, while the peaks at around 0.22 and 0.34 THz should correspond to the 3/2-wavelength and 5/2-wavelength resonances, respectively. 11 As discussed in previous work, 12 resonance wavelengths are generally different from the values expected to confine fields inside real cavity lengths.…”

confidence: 99%