An analytical approximate solution of the electromagnetic field on a subwavelength elliptical hole in a thin perfectly conducting screen is presented. Illumination is a linear polarized, normally incident plane wave. A polynomial development method is used and allows one to obtain an easy-to-use analytical solution of the fields, which can be used to build analytical expressions of aperture fields for apertures in anisotropic structures.
© 2012 Optical Society of America
Diffraction and Gratings
Original Manuscript: May 16, 2012
Revised Manuscript: July 12, 2012
Manuscript Accepted: July 13, 2012
Published: August 31, 2012
Jean-Baptiste Masson and Guilhem Gallot, "Diffraction from a subwavelength elliptic aperture: analytic approximate aperture fields," J. Opt. Soc. Am. A 29, 2005-2014 (2012)