Accurate description of ultrawide-angle beam propagation in homogeneous media by Lanczos orthogonalization

Abstract

We demonstrate accurate modeling of ultrawide-angle beam propagation in homogeneous media by Lanczos orthogonalization for acceptable longitudinal step sizes. Accuracy is determined by comparison with solutions to the Helmholtz equation obtained by a band-limited Fourier series method.

© 1994 Optical Society of America

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