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ANALYSIS OF THE OPTICAL TRANSMISSION THROUGH THE METAL PLATE WITH SLIT ARRAY

By Y. Fu, K. Li, and F. Kong

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Abstract:
The near and far field properties of the large-scale metal plate with slit array are studied by applying the finite-difference timedomain (FDTD) method. The far region scattering properties at different incident angles are also discussed. We find out the enhanced optical transmission (EOT) through the metal plate with suitable placed narrow slit array is excited by the interaction of the surface plasmon polarization (SPP) and the Fabry-Perot resonance (FPR), and the dielectric substrate has significant influence on the transmission properties by affecting the electromagnetic field distribution on the metal-dielectric interface. Furthermore, the scattering field would be reduced and the transmission efficiency could be improved by the phase shift caused by the dielectric substrate. These unusual properties suggest possible applications to light-transparent metal contacts, stealth materials, etc.

Citation:
Y. Fu, K. Li, and F. Kong, "Analysis of the optical transmission through the metal plate with slit array," Progress In Electromagnetics Research, Vol. 82, 109-125, 2008.
doi:10.2528/PIER08022013
http://www.jpier.org/PIER/pier.php?paper=08022013

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