A numerical improvement of the Fourier modal method with adaptive spatial resolution is obtained. It is shown that the solutions of all the eigenvalue problems corresponding to homogeneous regions can be deduced straightforwardly from the solution of one of these problems. Numerical examples demonstrate that computation time saving can be substantial.
© 2009 Optical Society of America
Diffraction and Gratings
Original Manuscript: June 30, 2009
Revised Manuscript: October 14, 2009
Manuscript Accepted: October 16, 2009
Published: November 9, 2009
Hakim Yala, Brahim Guizal, and Didier Felbacq, "Fourier modal method with spatial adaptive resolution for structures comprising homogeneous layers," J. Opt. Soc. Am. A 26, 2567-2570 (2009)