Enhanced transmission of transverse electric waves through subwavelength slits in a thin metallic film

By adding an array of metallic cut wires, the transmission of transverse electric (TE) waves (the electric field is parallel to the slits) through subwavelength slits in a thin metallic film is significantly enhanced. An 800-fold enhanced transmission is obtained compared to the case without the cut...

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Bibliographic Details
Published inPhysical review. E, Statistical, nonlinear, and soft matter physics Vol. 80; no. 3 Pt 2; p. 036606
Main Authors Ye, Yu Qian, Jin, Yi
Format Journal Article
LanguageEnglish
Published United States 01.09.2009
Subjects
Computer Simulation
Electromagnetic Fields
Membranes, Artificial
Metals
Models, Theoretical
Refractometry - methods
Scattering, Radiation
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Summary:By adding an array of metallic cut wires, the transmission of transverse electric (TE) waves (the electric field is parallel to the slits) through subwavelength slits in a thin metallic film is significantly enhanced. An 800-fold enhanced transmission is obtained compared to the case without the cut wires. It is demonstrated that a TE incident wave is highly confined by the cut wires, due to the excitation of the electric dipolelike resonance, and then effectively squeezed into and through the subwavelength slits.
ISSN:1550-2376
DOI:10.1103/PhysRevE.80.036606