Light transmission assisted by Brewster-Zennek modes in chromium films carrying a subwavelength hole array

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Abstract

This work confirms that not only surface plasmons but many other kinds of electromagnetic eigenmodes should be considered in explaining the values of the transmittivity through a slab bearing a two-dimensional periodic corrugation. Specifically, the role of Brewster-Zennek modes appearing in metallic films exhibiting regions of weak positive dielectric constant. It is proposed that these modes play a significant role in the light transmission in a thin chromium film perforated with normal cylindrical holes, for appropriate lattice parameters.
Original languageEnglish
Pages (from-to)075404-1-5
JournalPhysical Review. B, Condensed Matter and Materials Physics
Volume71
Issue number7
DOIs
Publication statusPublished - 2005

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