Ultrathin plasmonic metamaterial for spoof localized surface plasmons

Shen, Xiaopeng; Cui, Tie Jun

doi:10.1002/lpor.201300144

Cited by 269 publications

(183 citation statements)

References 39 publications

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“…Therefore, spoof SPPs or designer SPPs, which propagate on structured perfect electric conductors to mimic the optical properties of SPPs, such as dispersion behaviors and light confinement, 17 have been recently proposed by Pendry et al Unlike SPPs, [18][19][20][21] which arise from the interaction between light and free electrons in the noble metals, spoof SPPs result from interactions between electromagnetic waves and spatial capacitances and inductances that are induced by the structured metal surfaces. Recent research on spoof SPPs has revealed their promising potential applications, such as in flexible waveguides, 22 sensors, 23 laser beams, 24 energy concentration 25 and integrated circuits. 26 The concept that underlies spoof SPPs has also been extended to other physical systems, including acoustic waves, and has inspired novel devices in, for example, subwavelength imaging 27 and collimation.…”

Section: Introductionmentioning

confidence: 99%

Hyperbolic spoof plasmonic metasurfaces

et al. 2017

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Hyperbolic metasurfaces have recently emerged as a new research frontier because of the unprecedented capabilities to manipulate surface plasmon polaritons (SPPs) and many potential applications. However, thus far, the existence of hyperbolic metasurfaces has neither been observed nor predicted at low frequencies because noble metals cannot support SPPs at longer wavelengths. Here, we propose and experimentally demonstrate spoof plasmonic metasurfaces with a hyperbolic dispersion, where the spoof SPPs propagate on complementary H-shaped, perfectly conducting surfaces at low frequencies. Thus, non-divergent diffractions, negative refraction and dispersion-dependent spin-momentum locking are observed as the spoof SPPs travel over the hyperbolic spoof plasmonic metasurfaces (HSPMs). The HSPMs provide fundamental new platforms to explore the propagation and spin of spoof SPPs. They show great capabilities for designing advanced surface wave devices such as spatial multiplexers, focusing and imaging devices, planar hyperlenses, and dispersion-dependent directional couplers, at both microwave and terahertz frequencies.

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Section: Introductionmentioning

confidence: 99%

Hyperbolic spoof plasmonic metasurfaces

et al. 2017

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“…The idea of spoof surface plasmon in a perforated metallic structure triggered by Pendry with coworkers 1 ushered in a great deal of work in this field that ramified into spoof versions of surface plasmon polariton 2-8 and localized surface plasmon [9][10][11] in subsequent years.…”

Section: Introductionmentioning

confidence: 99%

Spoof surface plasmon resonant tunneling mode with high quality and Purcell factors

2017

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High quality factor and small modal volume for compact, integrable optical devices have always been of great demand. Although metamaterials may be designed to achieve selected mode confinement at a subwavelength scale, structures themselves have retained a large size. We address the issue of the subwavelength mode confinement in structures of reduced size by utilizing unique properties of spoof surface plasmon polaritons (SSPP). While SSPP modes are commonly considered in the context of periodic structures, we demonstrate that the SSPP formation does not depend crucially on periodicity and, therefore, meta-structures of minimal length can support well-formed spoof plasmon state. This general property is explicated through our study of the transmission spectrum of a three-cell waveguide with the spoof plasma frequency of the middle cell (defect cell) different from that of remaining cells (host). The SSPP state in the defect cell supports resonant tunneling manifested by a narrow transmission resonance inside the bandgap of the host structure. Despite the minimal length of the structure, the localized defect SSPP mode is characterized by very high quality (∼ 10 5 ) and Purcell (∼ 10 3 ) factors. The proposed concept can be a promising alternative for making a miniaturized sources, information storage and sensing devices at low terahertz frequencies.

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“…We consider an ultrathin textured metallic disk [11], as shown in Fig. 1b, to illustrate the multipolar LSP resonances.…”

Section: Spoof Localized Surface Plasmons On Corrugated Metallic mentioning

confidence: 99%

“…In the second part of the presentation, based on a recent 2D theoretical work on the spoof localized surface plasmons (LSPs) [10], we propose and experimentally demonstrate the spoof LSPs on a planar textured metallic disk with nearly zero thickness at the microwave frequencies [11]. We design and realize the plasmonic metamaterial using ultrathin metal film printed on a thin dielectric substrate and observe the multipolar plasmonic resonances in both numerical simulations and experiments, including the dipole, quadrupole, hexapole, octopole, decapole, dodeca-pole, and quattuordec-pole modes.…”

Section: Introductionmentioning

confidence: 99%

Spoof surface plasmons on ultrathin corrugated metal structures in microwave and terahertz frequencies

Cui

Shen

2013

2013 7th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics

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Structured metal surfaces can support spoof surface plasmons (SPs) in the microwave and terahertz frequencies, opening up a new road to manipulate the surface electromagnetic waves in subwavelength scales. The strong field confinements and fantastic plasmonic effects have motivated a vast range of studies and applications. However, the existing spoof SP structures are difficult to be integrated due to the nonplanar features. In this presentation we will review our recent work on the spoof SPs on ultrathin textured metallic surfaces, including the printed planar surface plasmon polaritons (SPPs) and conformal SPPs propagating on ultrathin corrugated metallic strips, and the spoof multipolar localized SPs on ultrathin textured metallic disks. We show that the proposed designs are versatile and flexible to route and localize SPs by numerical simulations and experiments. Hence the proposed ultrathin textured metallic structures have potential applications in building plasmonic components and sensors in the microwave and terahertz frequencies.

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Ultrathin plasmonic metamaterial for spoof localized surface plasmons

Cited by 269 publications

References 39 publications

Hyperbolic spoof plasmonic metasurfaces

Hyperbolic spoof plasmonic metasurfaces

Spoof surface plasmon resonant tunneling mode with high quality and Purcell factors

Spoof surface plasmons on ultrathin corrugated metal structures in microwave and terahertz frequencies

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