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Object characterization with refractometric digital Fourier holography

Författare:
Publiceringsår: 2005
Språk: Engelska
Sidor: 471-473
Publikation/Tidskrift/Serie: Optics Letters
Volym: 30
Nummer: 5
Dokumenttyp: Artikel
Förlag: Optical Society of America

Sammanfattning

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.

Disputation

Nyckelord

  • Technology and Engineering
  • Physics and Astronomy

Övriga

Published
Yes
  • ISSN: 0146-9592

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