A new implementation of the coupled-wave method for TM polarization is proposed. We use a second-order differential operator established by Nevière together with a scattering-matrix approach. Thus we obtain for metallic gratings a convergence rate as quick as that in TE polarization.
© 1996 Optical Society of America
Original Manuscript: December 7, 1995
Manuscript Accepted: December 21, 1995
Published: May 1, 1996
G. Granet and B. Guizal, "Efficient implementation of the coupled-wave method for metallic lamellar gratings in TM polarization," J. Opt. Soc. Am. A 13, 1019-1023 (1996)