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Enhanced robustness digital holographic microscopy for demanding environment of space biology

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Digital Holographic Microscopy (DHM) has been used to investigate the spontaneous cell membrane fluctuations (CMF) of the Red Blood Cell. DHM as an interferometric technique is able to accurately provide the wavefront deformation induced by a transparent s ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2010

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Since human behavior and perception have evolved within the Earth's gravitational field, humans possess an internal model of gravity. Although gravity is known to influence the visual perception of moving objects, the evidence is less clear concerning the ...

Association for Research in Vision and Ophthalmology2009

Noninvasive characterization of the fission yeast cell cycle by monitoring dry mass with digital holographic microscopy

Pierre Magistretti, Christian Depeursinge, Tristan Colomb, Benjamin Rappaz, Viesturs Simanis, Pierre Marquet, Jonas Kühn, Elena Cano

Digital holography microscopy (DHM) is an optical technique which provides phase images yielding quantitative information about cell structure and cellular dynamics. Furthermore, the quantitative phase images allow the derivation of other parameters, inclu ...

2009

Scaling of capillary, gravity and viscous forces affecting flow morphology in unsaturated porous media

Dani Or

Interplay between capillary, gravity and viscous forces in unsaturated porous media gives rise to a range of complex flow phenomena affecting morphology, stability and dynamics of wetting and drainage fronts. Similar average phase contents may result in si ...

2008

We present a generalization of the Dvali-Gabadadze-Porrati scenario to higher codimensions which, unlike previous attempts, is free of ghost instabilities. The 4D propagator is made regular by embedding our visible 3-brane within a 4-brane, each with their ...

2008

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Digital holography microscopy (DHM) is an optical microscopy technique which allows recording non-invasively the phase shift induced by living cells with nanometric sensitivity. Here, we exploit the phase signal as an indicator of dry mass (related to the ...

SPIE2008

We recently found extended CO(2-1) emission from cold molecular gas embedded in the network of Ha filaments surrounding the galaxy NGC 1275 (Salome et al. 2006). We now present CO(2-1) interferometer maps of the eastern filaments, at high spatial and spect ...

2008

The present thesis develops some specific aspects of digital holographic microscopy (DHM), namely the effect of shot noise on the phase image accuracy, the use of DHM in micro-tomography and in aberrations evaluation of a microscope objective (MO). DHM is ...

EPFL2007

Erythrocytes analysis with a Digital Holographic Microscope

Pierre Magistretti, Christian Depeursinge, Benjamin Rappaz, Pierre Marquet, Jonas Kühn, Florian Charrière

Digital holographic microscopy (DHM) is a technique that allows obtaining, from a single recorded hologram, quantitative phase image of living cell with interferometric accuracy (Marquet et al., 2005). Specifically the optical phase shift induced by the sp ...

SPIE2007

Erythrocytes analysis with a digital holographic microscope - art. no. 66310H

Pierre Magistretti, Christian Depeursinge, Benjamin Rappaz, Pierre Marquet, Florian Charrière

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2007