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Optics Letters

Optics Letters


  • Vol. 22, Iss. 19 — Oct. 1, 1997
  • pp: 1503–1505

Creation and annihilation of phase singularities in a focal field

G. P. Karman, M. W. Beijersbergen, A. van Duijl, and J. P. Woerdman  »View Author Affiliations

Optics Letters, Vol. 22, Issue 19, pp. 1503-1505 (1997)

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It is well known that uniform illumination of a lens leads to a focal field with a pattern of dark Airy rings in the focal plane, whereas this is not the case for Gaussian illumination. We show theoretically and experimentally that in the transition between the two cases the Airy rings, being phase singularities, reorganize themselves by means of a creation–annihilation process leading to new dark rings outside the focal plane.

© 1997 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction

G. P. Karman, M. W. Beijersbergen, A. van Duijl, and J. P. Woerdman, "Creation and annihilation of phase singularities in a focal field," Opt. Lett. 22, 1503-1505 (1997)

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