Microwave transmission of a compound metal grating

An array of subwavelength slits in a metallic substrate supports a series of Fabry-Perot-like resonances, where each harmonic results in a transmission peak. Addition of extra slits per period yields a compound grating with a structure factor associated with the basis. In this study each repeat peri...

Full description

Saved in:
Bibliographic Details
Published in:Physical review letters 2006-06, Vol.96 (25), p.257402-257402, Article 257402
Main Authors: Hibbins, Alastair P, Hooper, Ian R, Lockyear, Matthew J, Sambles, J Roy
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An array of subwavelength slits in a metallic substrate supports a series of Fabry-Perot-like resonances, where each harmonic results in a transmission peak. Addition of extra slits per period yields a compound grating with a structure factor associated with the basis. In this study each repeat period is comprised of a central slit flanked by a pair of narrower slits. It supports three resonances for every Fabry-Perot-like solution. New and useful insight into this phenomenon is gained by describing each of the modes in terms of the band structure of diffractively coupled surface waves.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.96.257402