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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 16, Iss. 11 — Nov. 1, 1999
  • pp: 2767–2771

Young’s interference experiments with a laser filamentary light source

Mónica E. Manceñido, Gustavo Pozzi, Luciano Zunino, and Mario Garavaglia  »View Author Affiliations


JOSA A, Vol. 16, Issue 11, pp. 2767-2771 (1999)
http://dx.doi.org/10.1364/JOSAA.16.002767


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Abstract

We used the focal line of a cylindrical lens illuminated by a collimated expanded He–Ne red laser light as a filamentary light source to observe Young’s interference fringes. When the monochromatic filamentary light source is parallel to Young’s slits, the interference fringes are parallel to them and are well defined and highly contrasted. When the filamentary light source is rotated in a plane parallel to that of the slits, the visibility of the interference fringes is always extremely high, but their geometrical distribution and the distance between them depend on the rotation angle and the observation distance. A simple theoretical model is proposed, based on a cylindrical wave propagated according to the Huygens–Kirchhoff formula. The experimental results coincide remarkably well with the stated theoretical model.

© 1999 Optical Society of America

OCIS Codes
(030.1640) Coherence and statistical optics : Coherence
(140.0140) Lasers and laser optics : Lasers and laser optics
(230.6080) Optical devices : Sources
(260.0260) Physical optics : Physical optics
(260.3160) Physical optics : Interference
(350.5500) Other areas of optics : Propagation

History
Original Manuscript: December 14, 1998
Revised Manuscript: April 14, 1999
Manuscript Accepted: April 14, 1999
Published: November 1, 1999

Citation
Mónica E. Manceñido, Gustavo Pozzi, Luciano Zunino, and Mario Garavaglia, "Young’s interference experiments with a laser filamentary light source," J. Opt. Soc. Am. A 16, 2767-2771 (1999)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-16-11-2767

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