Spatially multiplexed interferometric microscopy with partially coherent illumination

José Ángel Picazo-Bueno, Zeev Zalevsky, Javier Garciá, Carlos Ferreira, Vicente Micó

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


We have recently reported on a simple, low cost, and highly stable way to convert a standard microscope into a holographic one [Opt. Express 22, 14929 (2014)]. The method, named spatially multiplexed interferometric microscopy (SMIM), proposes an off-axis holographic architecture implemented onto a regular (nonholographic) microscope with minimum modifications: the use of coherent illumination and a properly placed and selected one-dimensional diffraction grating. In this contribution, we report on the implementation of partially (temporally reduced) coherent illumination in SMIM as a way to improve quantitative phase imaging. The use of low coherence sources forces the application of phase shifting algorithm instead of off-axis holographic recording to recover the sample's phase information but improves phase reconstruction due to coherence noise reduction. In addition, a less restrictive field of view limitation (1/2) is implemented in comparison with our previously reported scheme (1/3). The proposed modification is experimentally validated in a regular Olympus BX-60 upright microscope considering a wide range of samples (resolution test, microbeads, swine sperm cells, red blood cells, and prostate cancer cells).

Original languageEnglish
Article number106007
JournalJournal of Biomedical Optics
Issue number10
StatePublished - 1 Oct 2016

Bibliographical note

Publisher Copyright:
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE).


  • Holography
  • interference microscopy
  • medical and biological imaging
  • microscopy
  • phase measurement


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