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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 20 — Oct. 15, 2012
  • pp: 4212–4214

Clear coherent imaging in turbid microfluidics by multiple holographic acquisitions

Vittorio Bianco, Melania Paturzo, Andrea Finizio, Donatella Balduzzi, Roberto Puglisi, Andrea Galli, and Pietro Ferraro  »View Author Affiliations


Optics Letters, Vol. 37, Issue 20, pp. 4212-4214 (2012)
http://dx.doi.org/10.1364/OL.37.004212


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Abstract

Recently it has been demonstrated that digital holography is a powerful means allowing imaging of both amplitude and phase objects in turbid flowing media. However, in quasi-static turbid microfluidics, multiple scattering contributions through the colloids superimpose coherently to the recording device, resulting in speckle noise and hindering a clear vision of the objects. In this Letter we exploit the Brownian motion of the colloidal particles to get multiple uncorrelated holograms, and we combine them to reduce the speckle contrast. In this way we get a multi-look gain without losing image resolution.

© 2012 Optical Society of America

OCIS Codes
(030.4280) Coherence and statistical optics : Noise in imaging systems
(030.6140) Coherence and statistical optics : Speckle
(110.4190) Imaging systems : Multiple imaging
(290.7050) Scattering : Turbid media
(110.0113) Imaging systems : Imaging through turbid media
(090.1995) Holography : Digital holography

ToC Category:
Holography

History
Original Manuscript: June 26, 2012
Manuscript Accepted: August 16, 2012
Published: October 5, 2012

Citation
Vittorio Bianco, Melania Paturzo, Andrea Finizio, Donatella Balduzzi, Roberto Puglisi, Andrea Galli, and Pietro Ferraro, "Clear coherent imaging in turbid microfluidics by multiple holographic acquisitions," Opt. Lett. 37, 4212-4214 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-20-4212

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Supplementary Material


» Media 1: AVI (4097 KB)     
» Media 2: AVI (3511 KB)     
» Media 3: AVI (1858 KB)     
» Media 4: AVI (6914 KB)     

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