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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Because of their long propagation length at a metal surface in the far infrared, surface plasmons make potentially feasible the
design and realization of 2D integrated terahertz systems over a metallic substrate. The coupling of a terahertz beam to the surface
plasmon wave is very efficiently achieved by diffraction gratings engraved at the metal surface. In this article, we present a review
of some recent works we performed in view of characterizing this coupling phenomenon. The analysis of the experimental data
supplied by terahertz time-domain spectroscopy allows us to point out the main parameters that govern this diffraction process and
the propagation of a surface plasmon over a flat or corrugated metal surface.