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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Stephen A. Burns
  • Vol. 22, Iss. 12 — Dec. 1, 2005
  • pp: 2672–2676

Beam mixing with a pinhole

K. Schmid, E. Frins, H. Schmitzer, and W. Dultz  »View Author Affiliations

JOSA A, Vol. 22, Issue 12, pp. 2672-2676 (2005)

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After a small aperture the spatial information of a complex optical wavefront is lost, but amplitude and phase information is mixed and transferred to the smoothed wave that emerges from the pinhole. This mixing effect is described in the case of a wavefront with a phase step, which is shifted over the input plane of an optical processor with a pinhole as spatial filter in the Fourier plane. We constructed a polarizing interferometer to demonstrate this continuous phase shift and show that it can be used as a variable retardation wave plate similar to a birefringent compensator, but without crystalline wedges.

© 2005 Optical Society of America

OCIS Codes
(030.1670) Coherence and statistical optics : Coherent optical effects
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing

ToC Category:
Fourier Optics and Optical Signal Processing

Original Manuscript: March 1, 2005
Revised Manuscript: May 17, 2005
Manuscript Accepted: May 18, 2005
Published: December 1, 2005

K. Schmid, E. Frins, H. Schmitzer, and W. Dultz, "Beam mixing with a pinhole," J. Opt. Soc. Am. A 22, 2672-2676 (2005)

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