Full-vectorial to scalar FD-SOR formulations for optical waveguide modelling: a comparative study - Spadoti, Danilo Henrique; Francisco, Carlos Alberto de; Nascimento, Valtemir Emerêncio do; Borges, Ben-Hur Viana; Romero, Murilo Araujo (International Journal of Numerical Modelling: electronic networks, devices and fields, 2006)