Scattering of Surface Plasmon Polaritons by a Circularly Symmetric Surface Defect

Shchegrov, Andrei V.; Новиков, И. В.; Maradudin, A. A.

doi:10.1103/physrevlett.78.4269

Cited by 123 publications

(71 citation statements)

References 6 publications

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“…1(a)]. This may seem surprising, but one should bear in mind that very little is known about 2D SPPBG structures on the theoretical side, probably because even the case of SPP scattering by an individual surface defect requires elaborate simulations [16]. We found that the line defect of GM orientation with nearly the same width (having three rows of scatterers removed) does support the SPP guiding at 782 nm, albeit over only a short distance of ϳ5 mm (Fig.…”

Section: Figmentioning

confidence: 99%

Waveguiding in Surface Plasmon Polariton Band Gap Structures

et al. 2001

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Section: Figmentioning

confidence: 99%

Waveguiding in Surface Plasmon Polariton Band Gap Structures

et al. 2001

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“…In general, this problem is very complicated, and even a fairly simple case of the SPP scattering, i.e., the scattering of a homogeneous SPP by a circularly symmetric defect on a metal surface, requires elaborate numerical simulations. 18 The approximation of pointlike dipolar scatterers has been recently used to describe local excitation and scattering of SPP's out of the surface plane 19 as well as to simulate localization effects. 20 In the latter work, the indirect coupling between dipoles via the excitation of SPP's has been neglected, thus making the results obtained of limited use.…”

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confidence: 99%

Elastic scattering of surface plasmon polaritons: Modeling and experiment

1998

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Elastic ͑in-plane͒ scattering of surface plasmon polaritons ͑SPP's͒ is modeled by considering isotropic pointlike scatterers whose responses to the incident SPP field are phenomenologically related to their effective polarizabilities. Numerical simulations of single, double, and multiple scattering are presented for randomly situated scatterers showing the interplay between different orders of scattering and localization phenomena. Correlation between the scattering regimes and spatial Fourier spectra of the corresponding SPP intensity distributions is considered. Various optical microcomponents ͑e.g., straight and curved micromirrors͒ formed by sets of point scatterers are also simulated, and the stability and dispersion of their characteristics are investigated. The appropriate experimental results for SPP scattering by both random and specially configured sets of microscatterers are reported for two excitation wavelengths ͑594 and 633 nm͒ and different metal ͑silver and gold͒ films. The near-field optical images obtained are related to the calculated SPP intensity distributions demonstrating that the model developed can be successfully used in studies of SPP elastic scattering, e.g., to design the microcomponents for SPP's.

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“…To our knowledge, all works have concentrated on scatterers with translational symmetry in one direction, onto which the SPP impinges at normal incidence, except for the case of a circularly symmetric defect, considered in Ref. 30 by using the reduced Rayleigh equation.…”

Section: Introductionmentioning

confidence: 99%

Scattering of surface plasmon polaritons by one-dimensional inhomogeneities

2007

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The scattering of surface plasmons polaritons by a one-dimensional defect of the surface is theoretically studied by means of both Rayleigh and modal expansions. The defects considered are either relief perturbations or variations in the permittivity of the metal. The dependence of transmission, reflection, and out-of-plane scattering on parameters defining the defect is presented. We find that the radiated energy is forwardly directed ͑with respect to the surface plasmon propagation͒ in the case of an impedance defect. However, for relief defects, the radiated energy may be directed into the backward or forward ͑or both͒ direction, depending on the defect width.

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Scattering of Surface Plasmon Polaritons by a Circularly Symmetric Surface Defect

Cited by 123 publications

References 6 publications

Waveguiding in Surface Plasmon Polariton Band Gap Structures

Waveguiding in Surface Plasmon Polariton Band Gap Structures

Elastic scattering of surface plasmon polaritons: Modeling and experiment

Scattering of surface plasmon polaritons by one-dimensional inhomogeneities

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