Iterative method for zero-order suppression in off-axis digital holography

Nicolas Pavillon*, Cristian Arfire, Isabelle Bergoënd, Christian Depeursinge

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

We propose a method to suppress the so-called zero-order term in a hologram, based on an iterative principle. During the hologram acquisition process, the encoded information includes the intensities of the two beams creating the interference pattern, which do not contain information about the recorded complex wavefront, and that can disrupt the reconstructed signal. The proposed method selectively suppresses the zero-order term by employing the information obtained during wavefront reconstruction in an iterative procedure, thus enabling its suppression without any a priori knowledge about the object. The method is analyzed analytically and its convergence is studied. Then, its performance is shown experimentally. Its robustness is assessed by applying the procedure on various types of holograms, such as topographic images of microscopic specimens or speckle holograms.

Original languageEnglish (US)
Pages (from-to)15318-15331
Number of pages14
JournalOptics Express
Volume18
Issue number15
DOIs
StatePublished - Jul 19 2010

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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