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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 5, Iss. 1 — Jan. 4, 2010

Correct self-assembling of spatial frequencies in super-resolution synthetic aperture digital holography

Melania Paturzo and Pietro Ferraro  »View Author Affiliations


Optics Letters, Vol. 34, Issue 23, pp. 3650-3652 (2009)
http://dx.doi.org/10.1364/OL.34.003650


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Abstract

Synthetic aperture enlargement is obtained, in lensless digital holography, by introducing a diffraction grating between the object and the CCD camera with the aim of getting super-resolution. We demonstrate here that the spatial frequencies are naturally self-assembled in the reconstructed image plane when the NA is increased synthetically at its maximum extent of three times. By this approach it possible to avoid the use of the grating transmission formula in the numerical reconstruction process, thus reducing significantly the noise in the final super-resolved image. Demonstrations are reported in 1D and 2D with an optical target and a biological sample, respectively.

© 2009 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(090.0090) Holography : Holography
(090.1760) Holography : Computer holography
(100.6640) Image processing : Superresolution
(110.0180) Imaging systems : Microscopy

ToC Category:
Holography

History
Original Manuscript: June 12, 2009
Revised Manuscript: October 14, 2009
Manuscript Accepted: October 14, 2009
Published: November 20, 2009

Virtual Issues
Vol. 5, Iss. 1 Virtual Journal for Biomedical Optics

Citation
Melania Paturzo and Pietro Ferraro, "Correct self-assembling of spatial frequencies in super-resolution synthetic aperture digital holography," Opt. Lett. 34, 3650-3652 (2009)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-34-23-3650

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