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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 17, Iss. 4 — Apr. 1, 2000
  • pp: 724–728

Lens-based theory of the Lau effect

Andrzej Kolodziejczyk, Zbigniew Jaroszewicz, and Rodrigo Henao  »View Author Affiliations

JOSA A, Vol. 17, Issue 4, pp. 724-728 (2000)

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A new theoretical model of the Lau effect is presented. The transmittance of a diffraction grating can be expressed in an equivalent form as the sum of transmittances of thin cylindrical lenses. Therefore it is possible to explain the Lau effect on the basis of the well-known imaging properties of lenses. According to the given approach, the Lau fringes are created by overlapped images of the first grating that are formed by a set of lenses corresponding to the second grating in the setup. The theory leads to an exhaustive description of the Lau-effect parameters. In particular, one can indicate the shape of the Lau fringes and localize planes of the fringes dependent on the axial distance between gratings and their periods.

© 2000 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(110.2960) Imaging systems : Image analysis

Original Manuscript: May 10, 1999
Revised Manuscript: November 22, 1999
Manuscript Accepted: November 23, 1999
Published: April 1, 2000

Andrzej Kolodziejczyk, Zbigniew Jaroszewicz, and Rodrigo Henao, "Lens-based theory of the Lau effect," J. Opt. Soc. Am. A 17, 724-728 (2000)

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