Christian Depeursinge

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Publications associées (88)

Shot noise influence in reconstructed phase images SNR in digital holographic microscopy

Etienne Cuche, Christian Depeursinge, Pierre Marquet, Florian Charrière

We present a study based on simulations describing how shot noise, an intrinsic part of the recording process with a digital camera, influences the quality of the reconstructed phase images under different beams intensities configurations. ...

SPIE2005

Digital holographic microscopy for study cellular dynamics

Etienne Cuche, Christian Depeursinge, Pierre Marquet, Pierre Magistretti, Benjamin Rappaz

Based on an original numerical reconstruction algorithm (E. Cuche et al. Appl. Opt. 38, 6994 1999), we have developed a Digital Holographic Microscope (DHM), in a transmission mode, allowing to investigate noninvasively cellular structures and dynamics. DH ...

SPIE2005

Polarization microscopy by use of digital holography: application to optical- fiber birefringence measurements

Tristan Colomb, Etienne Cuche, Christian Depeursinge, Hans Georg Limberger, René Salathé, Pierre Marquet, Florian Dürr

We present a digital holographic microscope that permits one to image polarization state. This technique results from the coupling of digital holographic microscopy and polarization digital holography. The interference between two orthogonally polarized re ...

2005

Digital Holographic Microscopy, a new imaging technology applied to nanotechnology and life

Tristan Colomb, Frédéric Montfort, Stéphane Bourquin, Etienne Cuche, Christian Depeursinge, Pierre Marquet, Nicolas Aspert, Jonas Kühn, Florian Charrière, Mihaela Marian, Pierre Magistretti

2005

Digital holographic microscopy: a noninvasive contrast imaging technique allowing quantitative visualization of living cells with subwavelength axial accuracy

Tristan Colomb, Etienne Cuche, Christian Depeursinge, Pierre Marquet, Pierre Magistretti, Benjamin Rappaz

We have developed a digital holographic microscope (DHM), in a transmission mode, especially dedicated to the quantitative visualization of phase objects such as living cells. The method is based on an original numerical algorithm presented in detail elsew ...

2005

Clinical imaging fluorescence apparatus for the endoscopic photodetection of early cancers by use of Photofrin II

Christian Depeursinge, André Studzinski, Hubert van den Bergh, Georges Wagnières, André Châtelain

A fluorescence imaging device applied to the detection of early cancer is described. The app. is based on the imaging of laser-induced fluorescence of a dye that localizes in a tumor with a higher concn. than in the surrounding normal tissue after i.v. inj ...

Optical Society of America1997

Photodetection and photodynamic therapy of "early" squamous cell carcinomas of the pharynx, oesophagus and tracheo-bronchial tree

Christian Depeursinge, Hubert van den Bergh, Georges Wagnières, André Châtelain

The efficacy of photodynamic therapy (PDT) alone was evaluated on 41 ‘early’ squamous cell carcinomas of the pharynx (10), oesophagus (15) and tracheo-bronchial tree (16). All lesions but two were synchronous second primaries in ENT-patients suffering from ...

1990

Absorption optique des composés mixtes GaSxSe1-x

Christian Depeursinge

EPFL1977

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