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A numerical technique allowing theoretical analysis of propagation in three-dimensional (3-D) photonic-crystal (PC) slabs is presented. The method is an extension to the 3-D case of the two-dimensional multiple-scattering technique that was originally developed by Tayeb and Maystre. As an application, the method is used to numerically estimate the out-of-plane scattering losses in a straight PC waveguide of finite height.
Date of Publication: Dec. 2004