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Huygens-Fresnel principle for surface plasmons

Abstract : We present an explicit form of the surface plasmon propagator. Its form has the structure of a vectorial Huygens-Fresnel principle. The propagator appears to be a powerful tool to deal with diffraction, interference and focusing of surface plasmons. In contrast with the scalar approximation used so far, the vectorial propagator accounts for near-field and polarization effects. We illustrate the potential of the propagator by studying diffraction of surface plasmons by a slit and focusing of surface plasmons by a Fresnel lens.
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Tatiana Teperik, Alexandre Archambault, François Marquier, Jean-Jacques Greffet. Huygens-Fresnel principle for surface plasmons. Optics Express, Optical Society of America, 2009, 17 (20), pp.17483. ⟨hal-00574369⟩

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