Nicolas Pavillon

Cette personne n’est plus à l’EPFL

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Publications associées (25)

Off-axis low coherence interferometry contouring

Christian Depeursinge, Yves Delacrétaz, Nicolas Pavillon, Florian Lang

In this article we present a method to achieve tri-dimensional contouring of macroscopic objects. A modified reference wave speckle interferometer is used in conjunction with a source of reduced coherence. The depth signal is given by the envelope of the i ...

2009

Submicrometer tomography of cells by multiple-wavelength digital holographic microscopy in reflection

Tristan Colomb, Frédéric Montfort, Christian Depeursinge, Pierre Marquet, Jonas Kühn, Nicolas Pavillon, Benjamin Rappaz, Corinne Moratal

We present first results on a method enabling mechanical scanning-free tomography with submicrometer axial resolution by multiple-wavelength digital holographic microscopy. By sequentially acquiring reflection holograms and summing 20 wavefronts equally sp ...

2009

Digital holographic microscopy investigation of second harmonic generated at a glass/air interface

Christian Depeursinge, Jonas Kühn, Nicolas Pavillon, Etienne Shaffer

Optical second harmonic generation, thanks to its coherent nature, is a suitable signal for interferometric measurements, such as digital holography: a well-established imaging technique that allows recovering complex diffraction wavefields from which it i ...

2009

Suppression of the zero-order in off-axis digital holography through nonlinear filtering

Christian Depeursinge, Michaël Unser, Jonas Kühn, Nicolas Pavillon, Chandra Sekhar Seelamantula

We present experimental validation of a new reconstruction method for off-axis digital holographic microscopy (DHM). This method effectively suppresses the object auto-correlation — namely the zero-order term — from holographic data, thereby improving the ...

2009

Living specimen tomography by digital holographic microscopy: morphometry of testate amoeba

Tristan Colomb, Christian Depeursinge, Pierre Marquet, Florian Charrière, Nicolas Pavillon, Edward Mitchell, Benjamin Rappaz, Thierry Jean Heger

This paper presents an optical diffraction tomography technique based on digital holographic microscopy. Quantitative 2-dimensional phase images are acquired for regularly-spaced angular positions of the specimen covering a total angle of π, allowing to bu ...

2006

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