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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 36, Iss. 13 — May. 1, 1997
  • pp: 2755–2762

Apodization and the point-spread autocorrelation function

M. Müller and G. J. Brakenhoff  »View Author Affiliations


Applied Optics, Vol. 36, Issue 13, pp. 2755-2762 (1997)
http://dx.doi.org/10.1364/AO.36.002755


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Abstract

A novel function, the point-spread autocorrelation function (PSAF), which is closely related to the point-spread function, of a high numerical aperture microscope objective is introduced. The function is both experimentally measured and theoretically modeled for various apodization conditions. These include varying the effective numerical aperture of the objective, applying annuli of different size, and illuminating the objective with a spatially nonuniform intensity distribution. An excellent agreement between experimental data and theoretical modeling is obtained without the use of any fitting parameters. The PSAF technique is sensitive to the various apodization conditions, affecting both the width of the PSAF signal and the amplitude of the sidelobes. A potential use of the technique is the measurement of the effective numerical aperture and the optimization of the illumination conditions in complex microscopical systems.

© 1997 Optical Society of America

History
Original Manuscript: April 8, 1996
Revised Manuscript: September 16, 1996
Published: May 1, 1997

Citation
M. Müller and G. J. Brakenhoff, "Apodization and the point-spread autocorrelation function," Appl. Opt. 36, 2755-2762 (1997)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-36-13-2755

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