Abstract
The modal method is applied to the problem of conical diffraction on a rectangular slit metallic grating lying on an arbitrary multilayer medium. In the approximation of the surface impedance boundary condition on the grating walls, a single matrix equation is obtained, whose coefficients are expressed simply by the reflectivities on the different layers. A simple and comprehensive treatment is thus obtained for virtually any multilayer system. The method is illustrated for the case of a cavity formed by a planar metallic mirror and a grating, as well as the system formed by a doped layer with Drude susceptibility in a substrate below the grating. The method could be useful for the design of near- and far-infrared devices.
© 2007 Optical Society of America
Full Article | PDF ArticleMore Like This
S. Campbell, L. C. Botten, R. C. McPhedran, and C. Martijn de Sterke
J. Opt. Soc. Am. A 26(4) 938-948 (2009)
Mingming Jiang, Theodor Tamir, and Shuzhang Zhang
J. Opt. Soc. Am. A 18(4) 807-820 (2001)
Lifeng Li
J. Opt. Soc. Am. A 10(12) 2581-2591 (1993)