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Optics Letters

Optics Letters


  • Vol. 26, Iss. 24 — Dec. 15, 2001
  • pp: 1996–1998

Poincaré vortices

Isaac Freund  »View Author Affiliations

Optics Letters, Vol. 26, Issue 24, pp. 1996-1998 (2001)

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Traditional interferometric methods for measuring the vortex structure of complex wave fields suffer from many intrinsic problems and seldom yield results of any accuracy. Using the unique properties of what I call Poincaré vortices, I develop a radically different method based on Stokes parameters that offers many practical advantages. The theory of this new method is discussed, and its unique capabilities are illustrated by reconstruction with high accuracy of the vortex structure of a simulated random field containing numerous vortices, including several closely spaced vortex pairs that would be difficult, if not impossible, to resolve by traditional means.

© 2001 Optical Society of America

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(120.6160) Instrumentation, measurement, and metrology : Speckle interferometry
(230.5440) Optical devices : Polarization-selective devices
(260.2130) Physical optics : Ellipsometry and polarimetry
(260.3160) Physical optics : Interference
(260.5430) Physical optics : Polarization

Isaac Freund, "Poincaré vortices," Opt. Lett. 26, 1996-1998 (2001)

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