Tristan Colomb

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Publications associées (27)

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

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

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

Extended depth-of-focus by digital holographic microscopy

Christian Depeursinge, Jonas Kühn, Tristan Colomb, Nicolas Pavillon, Etienne Cuche

A recurrent problem in microscopy is the finite depth-of-focus linked to the NA of microscope objectives. Digital holographic microscopy (DHM) has the unique feature of being able to numerically change the focus from a single hologram without the need of m ...

Optical Society of America2010

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

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

2005

Automatic procedure for aberration compensation in digital holographic microscopy and applications to specimen shape compensation

Pierre Marquet, Christian Depeursinge, Jonas Kühn, Tristan Colomb, Etienne Cuche, Florian Charrière, Nicolas Aspert, Frédéric Montfort

We present a procedure that compensates for phase aberrations in digital holographic microscopy by computing a polynomial phase mask directly from the hologram. The phase-mask parameters are computed automatically without knowledge of physical values such ...

2006

Cell refractive index tomography by digital holographic microscopy

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

For what we believe to be the first time, digital holographic microscopy is applied to perform optical diffraction tomography of a pollen grain. Transmission phase images with nanometric axial accuracy are numerically reconstructed from holograms acquired ...

2006

WAVE FRONT SENSING METHOD AND APPARATUS

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

A new way of mixing instrumental and digital means is described for the general field of wave front sensing. The present invention describes the use, the definition and the utility of digital operators, called digital wave front operators (DWFO) or ... A n ...

2006

Axial sub-nanometer accuracy in digital holographic microscopy

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

IOP Publishing2008