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Low-data simulation of diffractive optical elements based on the zones geometry

Design and simulation of two-dimensional diffractive optical elements are often limited by the amount of data required to represent the element in the computer's memory. We present a technique based on a geometrical description of the element, which requires fewer data than the traditional pixe...

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Bibliographic Details
Published in:Journal of modern optics 2002-09, Vol.49 (11), p.1801-1809
Main Authors: RIPOLL, OLIVIER, KETTUNEN, VILLE, PETER HERZIG, HANS
Format: Article
Language:English
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Summary:Design and simulation of two-dimensional diffractive optical elements are often limited by the amount of data required to represent the element in the computer's memory. We present a technique based on a geometrical description of the element, which requires fewer data than the traditional pixel description. Moreover, the element is being described more accurately and consequently the pixel-related artefacts are suppressed. This technique can be used for both periodic and non-periodic structures of large dimensions under Fraunhofer or Fresnel approximations. We apply the method to analysis of far-field beam-shaping elements and discuss possible extensions and refinements of the technique.
ISSN:0950-0340
1362-3044
DOI:10.1080/09500340210140524