The two-dimensional vector plane wave spectrum (VPWS) is scattered from parallel circular cylinders using a boundary value solution with the T-matrix formalism. The VPWS allows us to define the incident, two- dimensional electromagnetic field with an arbitrary distribution and polarization, including both radiative and evanescent components. Using the fast Fourier transform, we can quickly compute the multiple scattering of fields that have any particular functional or numerical form. We perform numerical simulations to investigate a grating of cylinders that is capable of converting an evanescent field into a set of propagating beams. The direction of propagation of each beam is directly related to a spatial frequency component of the incident evanescent field.
© 2011 Optical Society of America
Original Manuscript: February 7, 2011
Manuscript Accepted: April 10, 2011
Published: May 23, 2011
Vol. 6, Iss. 7 Virtual Journal for Biomedical Optics
Peter Pawliuk and Matthew Yedlin, "Scattering from cylinders using the two-dimensional vector plane wave spectrum," J. Opt. Soc. Am. A 28, 1177-1184 (2011)