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Optics Letters

Optics Letters


  • Vol. 30, Iss. 5 — Mar. 1, 2005
  • pp: 471–473

Object characterization with refractometric digital Fourier holography

Mikael Sebesta and Mats Gustafsson  »View Author Affiliations

Optics Letters, Vol. 30, Issue 5, pp. 471-473 (2005)

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We demonstrate a digital holographic method in which two different substances in a blend are discerned. The method requires only one set of exposures and one reconstruction in the plane of focus. The phase is unwrapped by Flynn's discontinuity algorithm to produce an image of the variation of the optical distance of the illuminating wave. Objects with indices of refraction that are higher and lower than the mounting liquid are detected as regions in which the phase is increased and decreased, respectively. We also present a method for calculating the volume distribution of substrates in a sample. The method is experimentally demonstrated with crystals of NaCl and KCl.

© 2005 Optical Society of America

OCIS Codes
(090.1760) Holography : Computer holography
(100.5070) Image processing : Phase retrieval
(110.0180) Imaging systems : Microscopy
(160.4760) Materials : Optical properties

Mikael Sebesta and Mats Gustafsson, "Object characterization with refractometric digital Fourier holography," Opt. Lett. 30, 471-473 (2005)

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