Abstract

We propose a transparent boundary for the finite-element beam-propagation method to analyze the beam propagation in a finite computational window. In this method, a transparent boundary condition is derived by assuming a beam to be a plane wave in the vicinity of a virtual boundary, which eliminates undesirable reflections from a virtual boundary.

© 1993 Optical Society of America

Transparent boundary conditions for beam-propagation analysis from the Green’s function method

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J. Opt. Soc. Am. A 10(5) 896-904 (1993)

Transparent boundary condition for beam propagation

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Modified finite-difference beam-propagation method based on the Douglas scheme

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Finite-element method for gratings

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