Title :
Enhanced transmission through two-period arrays of subwavelength holes
Author :
Lomakin, Vitaliy ; Chen, Nan-Wei ; Li, Shuqing ; Michielssen, Eric
Author_Institution :
Center for Comput. Electromagn., Univ. of Illinois, Urbana, IL, USA
fDate :
7/1/2004 12:00:00 AM
Abstract :
A two-period array of subwavelength holes in a perfect electrically conducting plate permits enhanced transmission of incident plane waves with wavenumbers near those of leaky waves supported by the array. A simple periodic impedance sheet model explains this phenomenon and provides an approximate expression for the transmission peak location. Transmission through thin perforated plates is studied using a full-wave solver to verify model-theoretic observations. Transmission coefficient peak splitting and narrowing phenomena, associated with thick perforated plates, are explored.
Keywords :
electromagnetic wave propagation; electromagnetic wave scattering; electromagnetic wave transmission; microwave propagation; polaritons; surface electromagnetic waves; surface plasmons; enhanced transmission; full-wave solver; incident plane waves; leaky waves; model-theoretic observations; narrowing phenomena; perfect electrically conducting plate; periodic impedance sheet model; subwavelength holes; surface plasmon polaritons; surface waves; thick perforated plates; thin perforated plates; transmission coefficient peak splitting; transmission peak location; two-period arrays; wave numbers; Dielectric measurements; Electromagnetic measurements; Impedance; Magnetic fields; Optical surface waves; Optical waveguides; Plasmons; Radio frequency; Radiofrequency identification; Surface waves; Enhanced transmission; LW; PEC; SPPs; SWs; leaky-wave; perfect electrically conducting; subwavelength holes; surface plasmon polaritons; surface waves;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2004.829280
