Teperik T V, Archambault A, Marquier F, Greffet J J
Laboratoire Charles Fabry de l'Institut d'Optique, CNRS and Université Paris-Sud, Campus Polytechnique, RD 128, 91127 Palaiseau cedex, France.
Opt Express. 2009 Sep 28;17(20):17483-90. doi: 10.1364/OE.17.017483.
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.
我们给出了表面等离激元传播子的显式形式。其形式具有矢量惠更斯 - 菲涅耳原理的结构。该传播子似乎是处理表面等离激元的衍射、干涉和聚焦的有力工具。与迄今为止使用的标量近似不同，矢量传播子考虑了近场和偏振效应。我们通过研究表面等离激元通过狭缝的衍射以及通过菲涅耳透镜的聚焦来说明传播子的潜力。
