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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 35, Iss. 1 — Jan. 1, 1996
  • pp: 24–27

Focal switch: a new effect in low-Fresnel-number systems

Manuel Martínez-Corral and Vicent Climent  »View Author Affiliations


Applied Optics, Vol. 35, Issue 1, pp. 24-27 (1996)
http://dx.doi.org/10.1364/AO.35.000024


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Abstract

It is shown for the first time we believe, that when a spherical wave illuminates a certain type of diffracting screen, in addition to the expected focal-shift effect, depending on the value of the Fresnel number of the focusing system, a focal switch effect can appear, i.e., an increase in the height of the lateral lobe of the axial-intensity distribution over that of the central lobe.

© 1996 Optical Society of America

History
Original Manuscript: April 21, 1995
Revised Manuscript: June 21, 1995
Published: January 1, 1996

Citation
Manuel Martínez-Corral and Vicent Climent, "Focal switch: a new effect in low-Fresnel-number systems," Appl. Opt. 35, 24-27 (1996)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-35-1-24

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