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Optics Letters

Optics Letters


  • Vol. 26, Iss. 8 — Apr. 15, 2001
  • pp: 545–547

Critical foliations

Isaac Freund  »View Author Affiliations

Optics Letters, Vol. 26, Issue 8, pp. 545-547 (2001)

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Critical foliations are special two-dimensional slices (planes of observation) of a three-dimensional optical field in which an infinitesimally small change in the angle of observation produces major qualitative differences in the observed field structure. They are common, but previously unrecognized, features of optical fields that contain vortices. An experimentally realizable, on-axis example of such a foliation is described for a paraxial Gaussian laser beam.

© 2001 Optical Society of America

OCIS Codes
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(110.2990) Imaging systems : Image formation theory
(140.3460) Lasers and laser optics : Lasers
(260.0260) Physical optics : Physical optics
(350.5030) Other areas of optics : Phase

Isaac Freund, "Critical foliations," Opt. Lett. 26, 545-547 (2001)

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