Higher-order wide-angle split-step spectral method for non-paraxial beam propagation
نویسندگان
چکیده
منابع مشابه
Higher-order wide-angle split-step spectral method for non-paraxial beam propagation.
We develop a higher-order method for non-paraxial beam propagation based on the wide-angle split-step spectral (WASSS) method previously reported [Clark and Thomas, Opt. Quantum. Electron., 41, 849 (2010)]. The higher-order WASSS (HOWASSS) method approximates the Helmholtz equation by keeping terms up to third-order in the propagation step size, in the Magnus expansion. A symmetric exponential ...
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We develop a method for non-paraxial beam propagation that obtains a speed improvement over the Finite-Difference Split-Step method (FDSSNP) recently reported by Sharma et al. The method works in the eigen-basis of the Laplace operator ∇2 T ) , and in general requires half as many operations to propagate one step forward so that a 2X speedup can be realized. However, the new formulation allows ...
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Manuscript received December 22, 1998. Manuscript revised March 9, 1999. † The authors are with the Department of Electrical Engineering, Kanagawa University, Yokohama-shi, 221-8686 Japan. †† The authors are with the Department of Elctronics and Electrical Engineering, University of Nottingham, NG7-2RD U.K. a) E-mail: [email protected] SUMMARY In this paper, outlines of the derivation o...
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A new complex Jacobi iterative technique adapted for the solution of three-dimensional (3D) non-paraxial beam propagation is presented. The beam propagation equation for analysis of optical propagation in waveguide structures is based on a novel modified Padé(1,1) approximant operator we recently proposed. The effectiveness of our new approach is demonstrated in comparison with the traditional ...
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ژورنال
عنوان ژورنال: Optics Express
سال: 2013
ISSN: 1094-4087
DOI: 10.1364/oe.21.015815