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The scattering of light through arrays of sub-wavelength apertures is studied by using a boundary element method for solving Maxwell's equations. Computed results are compared with experiments. There are difficulties in making direct comparisons of measured and computed quantities, but subject to this, reasonable agreement is obtained. Alongside an attempt to reproduce computationally the observed...
Whereas a single sub-wavelength aperture transmits little light, much greater transmission is observed through an array of such apertures. Plainly the apertures interact, at a length scale related to their spacing, and encourage the transmission of the light through the small holes. This behaviour is studied via solution of the governing Maxwell equations in the space surrounding the perforated plate,...
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