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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 18 — Sep. 15, 2010
  • pp: 3087–3089

Phase change in a diffracted wave: a Cornu spiral perspective

Remy Avila and Victor M. Castaño  »View Author Affiliations

Optics Letters, Vol. 35, Issue 18, pp. 3087-3089 (2010)

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A simple evaluation of the phase change in a diffracted wave, in terms of the Cornu spiral, is presented to complement the well-known intensity change, which is routinely obtained for this elegant graphical construction of the Fresnel integrals. This is, to the best of our knowledge, the first presentation of this evaluation. It is shown that the phase of a wave diffracted by a slit is equal to the slope of the line tangent to the Cornu spiral, shifted by π / 4 .

© 2010 Optical Society of America

OCIS Codes
(000.6800) General : Theoretical physics
(050.1960) Diffraction and gratings : Diffraction theory

ToC Category:
Diffraction and Gratings

Original Manuscript: July 8, 2010
Manuscript Accepted: August 10, 2010
Published: September 9, 2010

Remy Avila and Victor M. Castaño, "Phase change in a diffracted wave: a Cornu spiral perspective," Opt. Lett. 35, 3087-3089 (2010)

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