Abstract

We introduce a volume integral formulation that describes the scattering of both TE and TM electromagnetic waves by deep inhomogeneous gratings. The method is compared with an analytical solution that permits a quantitative study of the influence of the grid cell size on the computed results. This integral approach converges for gratings of any thickness.

© 1992 Optical Society of America

Plane-wave scattering by gratings of conducting cylinders embedded in an inhomogeneous and lossy dielectric

Mahmood K. Moaveni, Azhar A. Rizvi, and Bahman A. Kamran
J. Opt. Soc. Am. A 5(6) 834-842 (1988)

Efficient high-order evaluation of scattering by periodic surfaces: deep gratings, high frequencies, and glancing incidences

Oscar P. Bruno and Michael C. Haslam
J. Opt. Soc. Am. A 26(3) 658-668 (2009)

Inverse-scattering view of modal structures in inhomogeneous optical waveguides

Jiqing Xia, Arthur K. Jordan, and Jin A. Kong
J. Opt. Soc. Am. A 9(5) 740-748 (1992)

Analysis of diffraction gratings by using an edge element method

Kokou Dossou, Muthukumaran Packirisamy, and Marie Fontaine
J. Opt. Soc. Am. A 22(2) 278-288 (2005)

Multiple scattering by deep perturbed gratings

M. E. Knotts and K. A. O’Donnell
J. Opt. Soc. Am. A 11(11) 2837-2843 (1994)