Digital in-line holography is widely used in flow studies where the 3D position, size and velocity of particles or fibers has to be known at a given time. When holograms are recorded by using a sub-picosecond laser, the enlargement of the spectral distribution acts as a spatial low-pass filter over the intensity distribution of the diffraction pattern. This is not a disadvantage as regards to the spatial sampling. Indeed, the Moiré effect, due to the sub-sampling of the fringe pattern is naturally reduced. Experimental results are provided.

© 2007 Optical Society of America

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4. C. Fournier, C. Ducottet and T. Fournel, "Digital in-line holography : influence of the reconstruction function on the axial profile of a reconstructed particle image," Meas. Sci. Technol 15, 686-693 (2004). [CrossRef]
5. W. Xu, M. H. Jericho, and H. J. Kreuzer, "Tracking particles if four dimensions with in-line holographic microscopy," Opt. Lett. 28,164-166 (2003). [CrossRef] [PubMed]
6. S. Coëtmellec, D. Lebrun and C. Özkul, "Application of the two-dimensional fractional-order Fourier transformation to particle field digital holography," J. Opt. Soc. Am. A 19, 1537-1546 (2002). [CrossRef]
7. D Lebrun, C Ozkul, D Allano, and A Leduc,"Use of the moiré effect to improve diameter measurements with charge coupled imagers," J. Opt. 22175-184 (1991). [CrossRef]
8. L. Onural, "Sampling of the diffraction field," App. Opt. 39, 5929-5935 (2000). [CrossRef]
9. M. Kato, Y. Nakayama, and T. Suzuki, "Speckle reduction in holography with a spatially incoherent source," App. Opt. 14, 1093-1099 (1975). [CrossRef]
10. F. Dubois, L. Joannes and J.C. Legros, "Improved three-dimensional imaging with a digital holography microscope with a source of partial spatial coherence," App. Opt. 34, 7085-7094 (1999) [CrossRef]
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12. E. Cuche, P. Marquet and C. Depeursinge, "Aperture apodization using cubic spline interpolation : application in digital holographic microscopy," Opt. Commun. 182, 59-69 (2000). [CrossRef]

App. Opt.

• U. Schnars and W. Jüptner, "Direct recording of holograms by a CCD target and numerical reconstruction," App. Opt. 33, 179-181 (1994). [CrossRef]
• L. Onural, "Sampling of the diffraction field," App. Opt. 39, 5929-5935 (2000). [CrossRef]
• M. Kato, Y. Nakayama, and T. Suzuki, "Speckle reduction in holography with a spatially incoherent source," App. Opt. 14, 1093-1099 (1975). [CrossRef]
• F. Dubois, L. Joannes and J.C. Legros, "Improved three-dimensional imaging with a digital holography microscope with a source of partial spatial coherence," App. Opt. 34, 7085-7094 (1999) [CrossRef]

J. Opt.

• D Lebrun, C Ozkul, D Allano, and A Leduc,"Use of the moiré effect to improve diameter measurements with charge coupled imagers," J. Opt. 22175-184 (1991). [CrossRef]

J. Opt. Soc. Am. A

• S. Coëtmellec, D. Lebrun and C. Özkul, "Application of the two-dimensional fractional-order Fourier transformation to particle field digital holography," J. Opt. Soc. Am. A 19, 1537-1546 (2002). [CrossRef]

Meas. Sci. Technol

• C. Fournier, C. Ducottet and T. Fournel, "Digital in-line holography : influence of the reconstruction function on the axial profile of a reconstructed particle image," Meas. Sci. Technol 15, 686-693 (2004). [CrossRef]

Opt. Commun

• F. Nicolas, S. Coëtmellec, M. Brunel, and D. Lebrun, "Digital in-line holography with a sub-picosecond laser beam," Opt. Commun,  268, 27-33 (2006). [CrossRef]

Opt. Commun.

• E. Cuche, P. Marquet and C. Depeursinge, "Aperture apodization using cubic spline interpolation : application in digital holographic microscopy," Opt. Commun. 182, 59-69 (2000). [CrossRef]

Opt. Eng.

• S. Belaïd, D. Lebrun and C. Özkul, "Application of two dimensional wavelet transform to hologram analysis: visualization of glass fibers in a turbulent flame," Opt. Eng. 36, 1947-1951, (1997). [CrossRef]

Opt. Lett.

• L. Onural, "Diffraction from a wavelet point of view," Opt. Lett. 18, 846-848 (1993). [CrossRef] [PubMed]
• W. Xu, M. H. Jericho, and H. J. Kreuzer, "Tracking particles if four dimensions with in-line holographic microscopy," Opt. Lett. 28,164-166 (2003). [CrossRef] [PubMed]

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