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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 7 — Apr. 1, 2010
  • pp: 1010–1012

Multi-imaging capabilities of a 2D diffraction grating in combination with digital holography

Melania Paturzo, Francesco Merola, and Pietro Ferraro  »View Author Affiliations


Optics Letters, Vol. 35, Issue 7, pp. 1010-1012 (2010)
http://dx.doi.org/10.1364/OL.35.001010


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Abstract

In this Letter we report on an alternative approach to get multiple images in microscopy, exploiting the capabilities of both a lithium niobate diffraction grating and digital holographic technique. We demonstrate that multi-imaging can be achieved in a lensless configuration by using a hexagonal diffraction grating but overcoming, thanks to digital holography (DH), the many constrains imposed by the grating parameters in multi-imaging with Talbot effect or Talbot array illuminators. In fact, DH permits the numerical reconstruction of the optical field diffracted by the grating, thus obtaining in-focus multiple images in a plane different from the fractional or entire Talbot ones.

© 2010 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(110.4190) Imaging systems : Multiple imaging
(160.3730) Materials : Lithium niobate
(180.0180) Microscopy : Microscopy
(090.1995) Holography : Digital holography

ToC Category:
Holography

History
Original Manuscript: November 23, 2009
Revised Manuscript: February 23, 2010
Manuscript Accepted: February 23, 2010
Published: March 29, 2010

Citation
Melania Paturzo, Francesco Merola, and Pietro Ferraro, "Multi-imaging capabilities of a 2D diffraction grating in combination with digital holography," Opt. Lett. 35, 1010-1012 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-7-1010

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