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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. 13, Iss. 4 — Apr. 1, 1996
  • pp: 771–778

Fresnel diffraction by circular and serrated apertures illuminated with an ultrashort pulsed-laser beam

Min Gu and X. S. Gan  »View Author Affiliations


JOSA A, Vol. 13, Issue 4, pp. 771-778 (1996)
http://dx.doi.org/10.1364/JOSAA.13.000771


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Abstract

Fresnel diffraction patterns by circular and serrated apertures under ultrashort pulsed-laser illumination are investigated in detail. A comparison of the diffraction patterns for pulsed and continuous wave illuminations reveals that an ultrashort pulsed beam of 10 fs can result in a significant effect on the distribution of the intensity. As a result a uniform intensity distribution in the transverse direction of the beam can be achieved as a result of the interference of the different frequency components within the pulsed beam. The interference fringes caused by the wavelets originating from the diffraction aperture can be further reduced when a serrated aperture is used.

© 1996 Optical Society of America

History
Original Manuscript: May 19, 1995
Revised Manuscript: October 11, 1995
Manuscript Accepted: October 11, 1995
Published: April 1, 1996

Citation
Min Gu and X. S. Gan, "Fresnel diffraction by circular and serrated apertures illuminated with an ultrashort pulsed-laser beam," J. Opt. Soc. Am. A 13, 771-778 (1996)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-13-4-771

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