title: Fourier modal method for relief gratings with oblique boundary conditions.
abstract: Oblique boundary conditions are introduced in the Fourier modal method at each slice of the staircase decomposition of an arbitrary profile of a dielectric corrugation grating. The precision and convergence improvement are demonstrated by comparison with reference methods.
authors.affiliation: Hubert Curien Laboratory, University Jean Monnet, 18 rue B. Lauras, 42000 Saint-Etienne, France.
authors.forename: Ivan
authors.initials: I
authors.lastname: Gushchin
authors.forename: Alexandre V
authors.initials: AV
authors.lastname: Tishchenko