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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 6 — Mar. 15, 2013
  • pp: 896–898

Enhancing depth of focus in tilted microfluidics channels by digital holography

Marcella Matrecano, Melania Paturzo, Andrea Finizio, and Pietro Ferraro  »View Author Affiliations

Optics Letters, Vol. 38, Issue 6, pp. 896-898 (2013)

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In this Letter we propose a method to enhance the limited depth of field (DOF) in optical imaging systems, through digital holography. The proposed approach is based on the introduction of a cubic phase plate into the diffraction integral, analogous to what occurs in white-light imaging systems. By this approach we show that it is possible to improve the DOF and to recover the extended focus image of a tilted object in a single reconstruction step. Moreover, we demonstrate the possibility of obtaining well-focused biological cells flowing into a tilted microfluidic channel.

© 2013 Optical Society of America

OCIS Codes
(100.0100) Image processing : Image processing
(090.1995) Holography : Digital holography
(110.3175) Imaging systems : Interferometric imaging

ToC Category:

Original Manuscript: December 13, 2012
Revised Manuscript: February 5, 2013
Manuscript Accepted: February 11, 2013
Published: March 12, 2013

Virtual Issues
Vol. 8, Iss. 4 Virtual Journal for Biomedical Optics

Marcella Matrecano, Melania Paturzo, Andrea Finizio, and Pietro Ferraro, "Enhancing depth of focus in tilted microfluidics channels by digital holography," Opt. Lett. 38, 896-898 (2013)

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