Phase imaging with a high-resolution wavefront sensor is considered. This is based on a quadriwave lateral shearing interferometer mounted on a non-modified transmission white-light microscope. The measurement technology is explained both in the scope of wave optics and geometrical optics in order to discuss its implementation on a conventional microscope. In particular we consider the effect of a non spatially coherent source on the phase-image signal-to-noise ratio. Precise measurements of the phase-shift introduced by microscopic beads or giant unilamellar vesicles validate the principle and show the accuracy of the methods. Diffraction limited images of living COS-7 cells are then presented, with a particular focus on the membrane and organelle dynamics.
Quadriwave lateral shearing interferometry for quantitative phase microscopy of living cells.
P. Bon,Guillaume Maucort,B. Wattellier,S. Monneret
Published 2009 in Optics Express
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- Publication year
2009
- Venue
Optics Express
- Publication date
2009-07-20
- Fields of study
Materials Science, Physics, Medicine, Engineering
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
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