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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 14 — May. 10, 2013
  • pp: 3288–3297

Computation of highly off-axis diffracted fields using the band-limited angular spectrum method with suppressed Gibbs related artifacts

Konstantinos Falaggis, Tomasz Kozacki, and Malgorzata Kujawinska  »View Author Affiliations


Applied Optics, Vol. 52, Issue 14, pp. 3288-3297 (2013)
http://dx.doi.org/10.1364/AO.52.003288


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Abstract

The angular spectrum (AS) method is a popular solution to the Helmholtz equation without the use of approximations. Modified band-limited AS methods are of particular interest for the cases of high-off-axis and large distance propagation problems, because conventional AS methods are impractical due to requirements regarding memory and computational effort. However, these techniques make use of rectangular-shaped filters that introduce ringing artifacts in the calculated field that are related to the Gibbs phenomenon. This work proposes AS algorithms based on a smooth band-limiting filter for accurate field computation as well as techniques that evaluate only nonzero components of the field. This enables accurate field calculations with an acceptable level of computational effort that cannot be offered by current AS methods reported in the scientific literature.

© 2013 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(090.0090) Holography : Holography
(050.1755) Diffraction and gratings : Computational electromagnetic methods

ToC Category:
Diffraction and Gratings

History
Original Manuscript: April 15, 2013
Revised Manuscript: April 15, 2013
Manuscript Accepted: April 15, 2013
Published: May 6, 2013

Citation
Konstantinos Falaggis, Tomasz Kozacki, and Malgorzata Kujawinska, "Computation of highly off-axis diffracted fields using the band-limited angular spectrum method with suppressed Gibbs related artifacts," Appl. Opt. 52, 3288-3297 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-14-3288

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