Beam mixing with a pinhole
JOSA A, Vol. 22, Issue 12, pp. 2672-2676 (2005)
http://dx.doi.org/10.1364/JOSAA.22.002672
Acrobat PDF (193 KB)
Abstract
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
Citation
K. Schmid, E. Frins, H. Schmitzer, and W. Dultz, "Beam mixing with a pinhole," J. Opt. Soc. Am. A 22, 2672-2676 (2005)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-22-12-2672
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