Abstract

A method based on symmetrized splitting of the propagation operator in the finite difference scheme for non-paraxial beam propagation is presented. The formulation allows the solution of the second order scalar wave equation without having to make the slowly varying envelope and one-way propagation approximations. The method is highly accurate and numerically efficient. Unlike most Padé approximant based methods, it is non-iterative in nature and requires less computation. The method can be used for bi-directional propagation as well.

Publication Type:	Article
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Departments:	School of Mathematics, Computer Science & Engineering > Engineering School of Mathematics, Computer Science & Engineering > Engineering > Electrical & Electronic Engineering
URI:	http://openaccess.city.ac.uk/id/eprint/2473

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