Use of digital holographic microscopy in tomography

Florian Charrière*, Frédéric Montfort, Jonas Kühn, Tristan Colomb, Anca Marian, Etienne Cuche, Pierre Marquet, Christian Depeursinge

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

Digital Holographic Microscopy (DHM) provides three-dimensional (3D) images with a high vertical accuracy in the nanometer range and a diffracted limited transverse resolution. This paper focuses on 3 different tomographic applications based on DHM. First, we show that DHM can be combined with time gating: a series of holograms is acquired at different depths by varying the reference path length, providing after reconstruction images of slices at different depths in the specimen thanks to the short coherence length of the light source. Studies on enucleated porcine eyes will be presented. Secondly, we present a tomography based on the addition of several reconstructed wavefronts measured with DHM at different wavelengths. Each wavefront phase is individually adjusted to be equal in a given plane of interest, resulting in a constructive addition of complex waves in the selected plane and destructive addition in the others. Varying the plane of interest enables the scan of the object in depth. Thirdly, DHM is applied to perform optical diffraction tomography of a pollen grain: transmission phase images are acquired for different orientations of the rotating sample, then the 3D refractive index spatial distribution is computed by inverse radon transform. The presented works will exemplify the versatility of DHM, but above all its capability of providing quantitative tomographic data of biological specimen in a quick, reliable and non-invasive way.

Original languageEnglish (US)
Title of host publicationBiophotonics and New Therapy Frontiers
Volume6191
DOIs
StatePublished - 2006
Externally publishedYes
EventBiophotonics and New Therapy Frontiers - Strasbourg, France
Duration: Apr 3 2006Apr 5 2006

Other

OtherBiophotonics and New Therapy Frontiers
CountryFrance
CityStrasbourg
Period04/3/0604/5/06

Keywords

  • 3D imaging
  • Cell imaging
  • Digital holography
  • Tomography

ASJC Scopus subject areas

  • Engineering(all)

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