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Proceedings Paper

Calculation of diffraction in the presence of aberrations by numerical methods based on critical points and semiperiodic zones
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Paper Abstract

The numerical calculation of diffraction integrals in systems with aberrations is addressed from the point of view of a new geometrical interpretation of the diffraction phenomena. This interpretation is based on the division of the integration domain in semiperiodic zones that isolate the integrand oscillations. Moreover, the critical points of the aperture allow to identify the zones with a net contribution to the diffracted field. With the help of this interpretation it is possible to define methods for calculating the diffraction of a spherical wave incident on an aperture. We study the problems that arise when these methods have to be applied to waves in aberrated systems and we propose a solution based on the analysis of the behavior of the optical path of the wave incident on the exit pupil of the system.

Paper Details

Date Published: 24 October 2000
PDF: 9 pages
Proc. SPIE 4093, Current Developments in Lens Design and Optical Systems Engineering, (24 October 2000); doi: 10.1117/12.405214
Show Author Affiliations
Josep Ferre-Borrull, Univ. de Barcelona (Italy)
Salvador Bosch, Univ. de Barcelona (Spain)


Published in SPIE Proceedings Vol. 4093:
Current Developments in Lens Design and Optical Systems Engineering
Robert E. Fischer; Warren J. Smith; Robert E. Fischer; R. Barry Johnson; Warren J. Smith; William H. Swantner, Editor(s)

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