Open AccessTransmission of light through small elliptical apertures
Author(s) -
Armis R. Zakharian,
Masud Mansuripur,
Jerome V. Moloney
Publication year - 2004
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.002631
Subject(s) - optics , monochromatic color , polarization (electrochemistry) , aperture (computer memory) , ellipse , finite difference time domain method , physics , plane wave , perpendicular , electromagnetic radiation , amplitude , plane (geometry) , extraordinary optical transmission , ray , plasmon , surface plasmon , surface plasmon polariton , geometry , acoustics , chemistry , mathematics , astronomy
The results of computer simulations based on the Finite Difference Time Domain method with local space and time grid refinement, are presented for an elliptical aperture in a thin metal film illuminated by a normally incident, monochromatic plane wave. Both cases of incident polarization parallel and perpendicular to the long axis of the ellipse are considered. An intuitive description of the behavior of the electromagnetic fields is developed in each case, and simulation results that exhibit patterns similar to those expected from this qualitative analysis are presented. The simulations reveal, in quantitative detail, the amplitude and phase behavior of the E- and B-fields in and around the aperture.