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Christophe Moser

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Related publications (219)

Device for photoactivation and reaction monitoring

Dominique Pioletti, Pierre-Etienne Bourban, Andreas Schmocker, Christophe Moser

The present invention relates to a device to photocure and/or photoactivate a photosensitive material. The device comprises several subsystems to transmit light towards an area of interest where a photosensitive material is applied as well as to collect li ...

2016

Device and method for injection, photoactivation and solidifaction of liquid embolic material in the vascular system or other organic cavities

Andreas Schmocker, Christophe Moser

The present invention concerns an organic cavity injection device including an injection cannula for injecting a photo-activatable substance inside an organic cavity; at least one element or a plurality of elements configured to control the removal of a re ...

2016

Bending Compensating Device, System and Method for Optical Waveguides

Demetri Psaltis, Christophe Moser, Damien Claude-Marie Loterie, Edgar Emilio Morales Delgado, Sebastien Walpen

A bending compensation device for a waveguide, including a direction changing device configured to maintain a constant bending angle to the waveguide, a distal end of the waveguide having a first orientation, and the proximal end of the waveguide having a ...

2016

Method and apparatus for head worn display with multiple exit pupils

Christophe Moser, Eric Tremblay

A method for displaying an image viewable by an eye, the image being projected from a portable head worn display, comprises steps of: emitting a plurality of light beams of wavelengths that differ amongst the light beams; directing the plurality of light b ...

2016

Overcoming the resolution limit in retinal imaging using the scattering properties of the sclera

Demetri Psaltis, Christophe Moser, Dino Carpentras, Timothé Laforest

In-vivo imaging of the eye's fundus is widely used to study eye's health. State of the art Adaptive Optics devices can resolve features up to a lateral resolution of 1.5 um. This resolution is still above what is needed to observe subcellular structures su ...

Spie-Int Soc Optical Engineering2016

Laser-assisted inkjet printing of highly viscous fluids with sub-nozzle resolution

Demetri Psaltis, Christophe Moser, Miguel Antonio Modestino, Paul Delrot

Drop-on-demand inkjet printing is mostly based on thermal and piezo-actuation, allowing for densely packed nozzles in inkjet printers. However, the droplet diameter is typically defined by the nozzle diameter, thus limiting the range of viscosity that can ...

Spie-Int Soc Optical Engineering2016

A photopolymerized composite hydrogel and surgical implanting tool for a nucleus pulposus replacement

Dominique Pioletti, Pierre-Etienne Bourban, Andreas Schmocker, Azadeh Khoushabi, Christophe Moser

Nucleus pulposus replacements have been subjected to highly controversial discussions over the last 40 years. Their use has not yet resulted in a positive outcome to treat herniated disc or degenerated disc disease. The main reason is that not a single imp ...

Elsevier2016

Versatile spectral modulation of a broadband source for digital holographic microscopy

Tristan Colomb, Gaël Nardin, Christophe Moser

We demonstrate the potential of spatial light modulators for the spectral control of a broadband source in digital holographic microscopy. Used in a ‘pulse-shaping’ geometry, the spatial light modulator provides a versatile control over the bandwidth and w ...

Optical Society of America2016

Fluorescence and optical-resolution photoacoustic imaging through capillary waveguides

Demetri Psaltis, Christophe Moser, Salma Farahi, Nicolino Stasio, Emmanuel André Henri Bossy

Endoscopy can be used to obtain high-resolution images at large depths in biological tissues. Usually endoscopic devices have a diameter ranging from 1 to few millimeters. Using digital phase conjugation, it is possible to adapt ultrathin multimode fibers ...

Spie-Int Soc Optical Engineering2016

Solar-to-Hydrogen Production at 14.2% Efficiency with Silicon Photovoltaics and Earth-Abundant Electrocatalysts

Christophe Ballif, Antonio Delfino, Antonin Faes, Demetri Psaltis, David Lambelet, Matthieu Despeisse, Christophe Moser, Jan-Willem Alexander Schüttauf, Julien Claude Bailat, Miguel Antonio Modestino, Enrico Chinello

Affordable, stable and earth-abundant photo-electrochemical materials are indispensable for the large-scale implementation of sunlight-driven hydrogen production. Here we present an intrinsically stable and scalable solar water splitting device that is ful ...

Electrochemical Society2016

Confocal microscopy via multimode fibers: fluorescence bandwidth

Demetri Psaltis, Christophe Moser, Damien Claude-Marie Loterie

We recently described a method for confocal reflection imaging through fibers, as a way to increase contrast when imaging unstained biological specimens. Using a transmission matrix, focused spots can be created at the distal end of a fiber. The backscatte ...

Spie-Int Soc Optical Engineering2016

In-situ photopolymerized and monitored implants: successful application to an intervertebral disc replacement

Dominique Pioletti, Andreas Schmocker, Azadeh Khoushabi, Christophe Moser

Photopolymerization is a common method to harden materials initially in a liquid state. A surgeon can directly trigger the solidification of a dental implant or a bone or tissue filler by using ultra-violet light. Traditionally, photopolymerization has bee ...

Spie-Int Soc Optical Engineering2016

Lensless two-photon imaging through a multicore fiber with coherence-gated digital phase conjugation

Demetri Psaltis, Christophe Moser, Nicolino Stasio, Edgar Emilio Morales Delgado, Donald Benjaman Conkey, Marilisa Romito

We performed near-diffraction limited two-photon fluorescence (TPF) imaging through a lensless, multicore-fiber (MCF) endoscope utilizing digital phase conjugation. The phase conjugation technique is compatible with commercially available MCFs with high co ...

SPIE Society of Photo-optical Instrumentation Engineers2016

Complex light in 3D printing

Demetri Psaltis, Christophe Moser, Damien Claude-Marie Loterie, Edgar Emilio Morales Delgado, Miguel Antonio Modestino, Paul Delrot

3D printing as a tool to generate complicated shapes from CAD files, on demand, with different materials from plastics to metals, is shortening product development cycles, enabling new design possibilities and can provide a mean to manufacture small volume ...

Spie-Int Soc Optical Engineering2016

Two-photon excitation endoscopy through a multimode optical fiber

Demetri Psaltis, Christophe Moser, Edgar Emilio Morales Delgado

The vast number of propagating solutions to the wave equation in multimode optical fibers represents a larger information capacity than provided by fiber bundles of the same diameter. Therefore, in the field of imaging, multimode fibers potentially allow t ...

Spie-Int Soc Optical Engineering2016

Inkjet Printing of Viscous Monodisperse Microdroplets by Laser-Induced Flow Focusing

Demetri Psaltis, François Gallaire, Christophe Moser, Miguel Antonio Modestino, Paul Delrot

The on-demand generation of viscous microdroplets to print functional or biological materials remains challenging using conventional inkjet-printing methods, mainly due to aggregation and clogging issues. In an effort to overcome these limitations, we impl ...

American Physical Society (APS)2016

Flat lensless phase imager

Christophe Moser, Manon Rostykus

Lensless imaging refers to an imaging technique which requires no imaging element between the light transmitted by the sample and the camera. This configuration enables designing compact devices. In the visible range, it is mainly investigated for microsco ...

Spie-Int Soc Optical Engineering2016

Methods and apparatus for imaging with multimode optical fibers

Demetri Psaltis, Ioannis Papadopoulos, Christophe Moser, Salma Farahi

A multimode waveguide illuminator and imager relies on a wave front shaping system that acts to compensate for modal scrambling and light dispersion by the multimode waveguide. A first step consists of calibrating the multimode waveguide and a second step ...

2015

Towards new applications using capillary waveguides

Demetri Psaltis, Christophe Moser, Salma Farahi, Nicolino Stasio, Emmanuel André Henri Bossy

In this paper we demonstrate the enhancement of the sensing capabilities of glass capillaries. We exploit their properties as optical and acoustic waveguides to transform them potentially into high resolution minimally invasive endoscopic devices. We show ...

Optical Soc Amer2015

Transflective holographic film for head worn display

Jürgen Brugger, Jonas Grossenbacher, Victor Javier Cadarso Busto, Christophe Moser, Eric Tremblay

A display panel assembly comprises a transflective holographic screen, i.e., a transparent screen that reflects light from a projection system, comprising at least a volume hologram, a first protective element and a second protective element, each arranged ...

2015

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