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Applied Optics

Applied Optics


  • Vol. 41, Iss. 28 — Oct. 1, 2002
  • pp: 5951–5955

Three-dimensional phase imaging with the intensity transport equation

Colin J. R. Sheppard  »View Author Affiliations

Applied Optics, Vol. 41, Issue 28, pp. 5951-5955 (2002)

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Phase can be retrieved from intensity measurements with the intensity transport equation. Three-dimensional image formation of weak phase objects based on this method is investigated. It is shown that, although the refractive index of a thin object can be measured, the three-dimensional variation of refractive index of an arbitrary object cannot, in general, be reconstructed, as spatial frequencies with a zero-axial component are not detected. However, this may not be a problem if regions with known refractive index are present in the sample.

© 2002 Optical Society of America

OCIS Codes
(100.5070) Image processing : Phase retrieval
(110.6880) Imaging systems : Three-dimensional image acquisition
(180.6900) Microscopy : Three-dimensional microscopy

Original Manuscript: December 20, 2001
Revised Manuscript: June 17, 2002
Published: October 1, 2002

Colin J. R. Sheppard, "Three-dimensional phase imaging with the intensity transport equation," Appl. Opt. 41, 5951-5955 (2002)

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