Franco, Marcos A. R.Passaro, AngeloCardoso, José R.Machado, José M. [UNESP]2014-05-272014-05-271999-12-01IEEE Transactions on Magnetics, v. 35, n. 3 PART 1, p. 1546-1549, 1999.0018-9464http://hdl.handle.net/11449/65948This work presents the application of a scalar finite element formulation for Ex (TE-like) modes in anisotropic planar and channel waveguides with diagonal permittivity tensor, diffused in both transversal directions. This extended formulation considers explicitly both the variations of the refractive index and their spatial derivates inside of each finite element. Dispersion curves for Ex modes in planar and channel waveguides are shown, and the results compared with solutions obtained by other formulations.1546-1549engAnisotropic mediaFinite element methodsNonhomogeneoulsy loaded waveguidesOptical strip waveguidesAnisotropyComputer simulationElectromagnetic dispersionFinite element methodPermittivityRefractive indexTensorsChannel waveguidesDiffused optical waveguidesNonhomogeneously loaded waveguidesOptical waveguidesArtigo10.1109/20.767263WOS:000080490900113Acesso restrito2-s2.0-0033121747