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Scattering in elements of plasmon optics suppressed by two-layer dielectric structures


Based on the results of simulations in the framework of a rigorous electromagnetic theory of diffraction, it is shown that a structure comprising two isotropic dielectric layers on a metal surface can be used to suppress parasitic scattering in elements of plasmon optics. The proposed dielectric structure makes possible a tenfold decrease (to 1–3%) in the level of scattering losses. This approach can also be applied in creating various elements of plasmon optics, in particular, lenses and Bragg reflection gratings.

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Correspondence to E. A. Bezus.

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Original Russian Text © E.A. Bezus, L.L. Doskolovich, N.L. Kazanskiy, V.A. Soifer, 2011, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2011, Vol. 37, No. 23, pp. 10–18.

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Bezus, E.A., Doskolovich, L.L., Kazanskiy, N.L. et al. Scattering in elements of plasmon optics suppressed by two-layer dielectric structures. Tech. Phys. Lett. 37, 1091–1095 (2011).

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  • Technical Physic Letter
  • Plasmon Mode
  • Dielectric Structure
  • Transverse Profile
  • Tenfold Decrease