Surface shape resonances

Das, Purna Chandra; Gersten, Joel I.

doi:10.1103/physrevb.25.6281

Cited by 41 publications

(7 citation statements)

References 11 publications

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“…Spikes, therefore, have high polarizabilities. In addition, the high polarizability of a spike can arise due to localized plasmon resonances [41][42][43]. If spikes have the same shape and are located close to each other, then a propagating mode arises [16].…”

Section: Mechanism For the Formation Of The Strongly Confined Sppmentioning

confidence: 99%

Highly confined surface plasmon polaritons in the ultraviolet region

Chubchev¹,

Nechepurenko²,

Dorofeenko³

et al. 2018

Opt. Express

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Surface plasmon polaritons are commonly believed to be a future basis for the next generation of optoelectronic and all-optical devices. To achieve this, it is critical that the surface plasmon polariton modes be strongly confined to the surface and have a sufficiently long propagation length and a nanosize wavelength. As of today, in the visible part of the spectrum, these conditions are not satisfied for any type of surface plasmon polaritons. In this paper, we demonstrate that in the ultraviolet range, surface plasmon polaritons propagating along a periodically nanostructured aluminum-dielectric interface have all these properties. Both the confinement length and the wavelength of the mode considered are smaller than the period of the structure, which can be as small as 10 nm. At the same time, the propagation length of new surface plasmon-polaritons can reach dozens of its wavelengths. These plasmon polaritons can be observed in materials that are uncommon in plasmonics such as aluminum. The suggested modes can be used for miniaturization of optical devices.

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Section: Mechanism For the Formation Of The Strongly Confined Sppmentioning

confidence: 99%

Highly confined surface plasmon polaritons in the ultraviolet region

Chubchev¹,

Nechepurenko²,

Dorofeenko³

et al. 2018

Opt. Express

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“…It so happens that similar problems are of great interest in other fields of physics such as electrodynamics (e.g, optics and microwaves) [37,211,240,210,220,77,223,365,108,316,295,6,366,367,203,345,294,112,134,204,76,81,198,199,238,114,180,276,59,90,230,250,253,261,262,272,280,294,324,338,346,347,348,349,355], acoustics [338,331,236,337,121,…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, research in these fields has largely switched to the near-field, stimulated by the discovery of such spectacular effects as SERS (Surface-Enhanced Raman Scattering) [211,240,315,345,365], enhanced frequency-selective (total) absorption (as applied notably to energy harvesting [172,198] or noise reduction [121,122,357,198]), and negative refraction [180,207] in media (recently dubbed metamaterials [368,381]) bounded by, or including, periodic structures [90,211,210,220,77,222,365,108,316,295,6,366,367,203,345,294,112,134,204,76,81,198,199,54,80,97,134,207,261].…”

Section: Introductionmentioning

confidence: 99%

Resonant amplified seismic response within a hill or mountain

Wirgin

2020

Preprint

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We show theoretically what is meant by the term '(surface shape) resonance' in connection with the seismic response of a protuberance (emerging from flat ground) such as a hill or mountain of arbitrary shape. We address the specific problem of cylindrical protuberances of rectangular shape submitted to a SH plane wave. We find that the principal (i.e., qualitative) characteristics of the seismic response of a mountain are quite similar to those of a hill, and that the occurrence of significative amplification of the displacement field within these structures is due to the coupling of the incident wave to (surface shape) resonances.

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“…In relation to this, several protuberance profiles have been studied, e.g., hemispherical [9], spherical [7], and spheroidal profiles [10]. From a theoretical point of view, the defects can usually be treated as protuberances or indentations which can be a e-mail: rai@fisica.ufc.br described mathematically by a profile function.…”

Section: Introductionmentioning

confidence: 99%

Large scale correlations for energy injection mechanisms in swirling turbulent flows

et al. 2000

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The spectrum of surface shape resonances associated with a finite number of ridges on one interface of an otherwise plane film is calculated. The frequencies are obtained numerically by solving the homogeneous integral equations which describe the electrostatic field in the vicinity of a surface defect. The calculations are performed for a surface with ridges with Gaussian, Lorentzian and sinusoidal profiles. The results show a strong dependence of the localized plasmon frequencies on the surface profile, on the distance between the ridges, and on the thickness of the film. PACS. 73.20.Mf Collective excitations (including plasmons and other charge density excitations) -78.66.Bz Metals and metallic alloys

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Surface shape resonances

Cited by 41 publications

References 11 publications

Highly confined surface plasmon polaritons in the ultraviolet region

Highly confined surface plasmon polaritons in the ultraviolet region

Resonant amplified seismic response within a hill or mountain

Large scale correlations for energy injection mechanisms in swirling turbulent flows

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