Multimode magnetic responses in NIR and visible ranges

Hu, Chenggang; Liu, L.; Zhao, Zeping; Chen, X.; Qin, Feng; Luo, Xiangang

doi:10.1007/s00340-009-3579-8

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…The majority of the aforementioned metamaterial studies focused on achieving the desired electromagnetic response at a single frequency band. In order to achieve a dual band negative index, a typical method is to construct the composite with the ability of producing magnetic responses at two frequency bands [22][23][24]. It will then be combined with material that allows negative permittivity at the corresponding frequency bands.…”

Section: Introductionmentioning

confidence: 99%

Development of Novel Tunable Dual-Band Negative Index Metamaterial Using Open Stub-Loaded Stepped-Impedance Resonator

Alhawari¹,

Ismail²,

Mahdi³

et al. 2011

PIER B

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Abstract-This study reports on tunable planar metamaterial design that is capable to achieve dual-band negative index of refraction responses operating in microwave regime. Its distinctive characteristic is the usage of tuning open stub-loaded stepped-impedance resonators. Parameters retrieval algorithm, and full-wave simulation of prismshaped structure were carried out to validate the negative refraction characteristics of metamaterial structure. The results predict its prospect as a very promising alternative to the conventional ones, which is compatibly applicable on various potential microwave devices especially when dual-band function is required. In addition to that, its design flexibility offers a various frequency bands at any possible choice, which is alterable together with any design parameters changes.

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Section: Introductionmentioning

confidence: 99%

Development of Novel Tunable Dual-Band Negative Index Metamaterial Using Open Stub-Loaded Stepped-Impedance Resonator

Alhawari¹,

Ismail²,

Mahdi³

et al. 2011

PIER B

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“…Examples are waveguides for gap [5], channel [3,6] and wedge [7] plasmon polaritons. Nanocavities are typically obtained by cutting the waveguide to a finite, very short length [8,9]. In particular cases the resonant elements are represented by single particles, inter-particle gaps [8] or metal voids where the PSPP is guided along predefined circuits [3].…”

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confidence: 99%

Plasmonic modes of extreme subwavelength nanocavities

et al. 2010

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We study the physics of a new type of subwavelength nanocavities. They are based on U-shaped metal-insulator-metal waveguides supporting the excitation of surface plasmon polaritons. The nanocavity arrays are excited by plane waves at either a normal or oblique incidence. Because of their finite length, discrete modes emerge within the nanocavity. We show that the excitation symmetry with respect to the cavity ends permits the observation of even and odd modes. Our investigations include near- and far-field simulations and predict a strong spectral far-field response of the comparably small nanoresonators. The strong near-field enhancement observed in the cavity at resonance might be suitable to increase the efficiency of nonlinear optical effects and quantum analogies and might facilitate the development of optical elements, such as active plasmonic devices.

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Multimode magnetic responses in NIR and visible ranges

Cited by 2 publications

References 12 publications

Development of Novel Tunable Dual-Band Negative Index Metamaterial Using Open Stub-Loaded Stepped-Impedance Resonator

Development of Novel Tunable Dual-Band Negative Index Metamaterial Using Open Stub-Loaded Stepped-Impedance Resonator

Plasmonic modes of extreme subwavelength nanocavities

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