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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 16, Iss. 5 — May. 1, 1999
  • pp: 1049–1058

Effects of partial spatial coherence with uniform-intensity diffractive axicons

Ari T. Friberg and Sergei Yu. Popov  »View Author Affiliations


JOSA A, Vol. 16, Issue 5, pp. 1049-1058 (1999)
http://dx.doi.org/10.1364/JOSAA.16.001049


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Abstract

Apodized annular-aperture logarithmic axicons that form uniform-intensity axial line images with coherent light are studied in Gaussian-correlated illumination. Diffractive assessment of the line-image distributions and spatial coherence properties involves a highly oscillating double two-dimensional integral. The on-axis behavior depends only on radial integrals that can be computed with special-purpose routines. We show that at all correlation levels the images at off-axis points can be evaluated by using a technique based on spline approximations. We also demonstrate that the method of stationary phase can be sequentially applied to the four-dimensional diffraction integral, yielding accurate three-dimensional closed-form results. The stationary-phase formulas find applications in fast image evaluation, in intensity balancing by varying the irradiance, and in designing axicon phase profiles. The results complement our earlier study of partially coherent axicon images by radiometric transport techniques.

© 1999 Optical Society of America

OCIS Codes
(030.5630) Coherence and statistical optics : Radiometry
(350.3950) Other areas of optics : Micro-optics
(350.5500) Other areas of optics : Propagation

Citation
Ari T. Friberg and Sergei Yu. Popov, "Effects of partial spatial coherence with uniform-intensity diffractive axicons," J. Opt. Soc. Am. A 16, 1049-1058 (1999)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-16-5-1049

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