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Applied Optics

Applied Optics


  • Vol. 42, Iss. 3 — Jan. 20, 2003
  • pp: 418–428

Analysis of the shadow-sausage effect caustic

James A. Lock, Charles L. Adler, Diana Ekelman, Jonathan Mulholland, and Brian Keating  »View Author Affiliations

Applied Optics, Vol. 42, Issue 3, pp. 418-428 (2003)

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We analyze the optical caustic produced by light refracted at the curved meniscus surrounding a cylindrical rod standing partially out of a liquid-filled container. When the rod is tilted from the vertical or when light is diagonally incident, the caustic is a four-cusped astroid with two of its cusps obscured by the rod’s shadow. If a portion of the flat end of the rod is raised above the water level, the caustic evolves into a pattern of five interlocking cusps. The five cusps result from symmetry breaking of a three-cusped surface perturbation caustic.

© 2003 Optical Society of America

OCIS Codes
(080.1010) Geometric optics : Aberrations (global)
(080.1510) Geometric optics : Propagation methods
(290.0290) Scattering : Scattering

Original Manuscript: December 17, 2001
Revised Manuscript: March 4, 2002
Published: January 20, 2003

James A. Lock, Charles L. Adler, Diana Ekelman, Jonathan Mulholland, and Brian Keating, "Analysis of the shadow-sausage effect caustic," Appl. Opt. 42, 418-428 (2003)

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