Abstract
The three-dimensional split-field finite-difference time-domain (SF-FDTD) method is combined with the total-field–scattered-field method for injecting a plane wave. A formulation is derived for calculating the incidence transformed fields of SF-FDTD on a one-dimensional auxiliary grid. The resulting fields obtained in the scattered zone are used to calculate the far fields, based on a proposed fully time-domain near-to-far-field transformation. The far-field information is used to calculate the extinction cross section of the periodic structure under oblique incidence. To analyze metallic periodic structures, a formulation with a reduced number of variables is proposed based on the auxiliary differential equation method for dispersive media.
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
Jorge Francés, Jani Tervo, Sergi Gallego, Sergio Bleda, Cristian Neipp, and Andrés Márquez
J. Opt. Soc. Am. B 32(4) 664-669 (2015)
Jorge Francés, Jani Tervo, and Andrés Márquez
J. Opt. Soc. Am. B 30(6) 1711-1719 (2013)
Huaguang Bao, Lei Kang, Sawyer D. Campbell, and Douglas H. Werner
Opt. Express 27(9) 13116-13128 (2019)