Abstract
Optical transmission through sub-wavelength slit apertures is studied based on the electromagnetic field distributions obtained in computer simulations. The results show the existence of a cutoff for E|| and a strong transmission (with no cutoff) for E⊥; here || and ⊥ refer to the direction of the incident E-field relative to the long axis of the slit. When multiple slits are present, under certain conditions, interference among the induced surface charges and currents can result in enhanced transmission through individual slits.
© 2005 Optical Society of America
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