Derivative method for phase retrieval in off-axis quantitative phase imaging

Basanta Bhaduri, Gabriel Popescu

Research output: Contribution to journalArticlepeer-review

Abstract

We present a method for phase retrieval in off-axis interferometric systems. By numerically calculating the transverse 1st and 2nd order derivatives of the interferogram, we show that one can directly retrieve the quantitative phase image, without the need for Fourier or Hilbert transformations. Because of this, the method is significantly faster than the current approaches. We illustrate our method using biological specimen data from three different off-axis quantitative phase imaging techniques.

Original languageEnglish (US)
Pages (from-to)1868-1870
Number of pages3
JournalOptics Letters
Volume37
Issue number11
DOIs
StatePublished - Jun 1 2012

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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