Christian Tielemans, Cécile Husson, Thierry Schurmans, Karine Gastaldello, Philippe Madhoun, Jean-Pierre Delville, ...
Laser microfluidics: fluid actuation by light (2009)
Delville, Jean-Pierre, De Saint-Vincent, Matthieu Robert, Schroll, Robert D., Chraibi, Hamza, Issenmann, B., Wunenburger, Régis, ...
The development of microfluidic devices is still hindered by the lack of robust fundamental building blocks that constitute any fluidic system. An attractive approach is optical actuation because...
Stretching and squeezing of sessile dielectric drops by the optical radiation pressure (2009)
Chraibi, Hamza, Lasseux, Didier, Arquis, Eric, Wunenburger, Régis, Delville, Jean-Pierre
We study numerically the deformation of sessile dielectric drops immersed in a second fluid when submitted to the optical radiation pressure of a continuous Gaussian laser wave. Both drop stretching...
Simulation of an optically induced asymmetric deformation of a liquid-liquid interface (2009)
Chraibi, Hamza, Lasseux, Didier, Arquis, Eric, Wunenburger, Régis, Delville, Jean-Pierre
Deformations of liquid interfaces by the optical radiation pressure of a focused laser wave were generally expected to display similar behavior, whatever the direction of propagation of the incident...
Laser microfluidics: fluid actuation by light (2009)
Delville, Jean-Pierre, Robert De Saint-Vincent, Matthieu, Schroll, Robert D., Chraibi, Hamza, Issenmann, B., Wunenburger, Régis, ...
The development of microfluidic devices is still hindered by the lack of robust fundamental building blocks that constitute any fluidic system. An attractive approach is optical actuation because...
Laser microfluidics: fluid actuation by light (2009)
Delville, Jean-Pierre, Robert De Saint-Vincent, Matthieu, Schroll, Robert D., Chraibi, Hamza, Issenmann, B., Wunenburger, Régis, ...
The development of microfluidic devices is still hindered by the lack of robust fundamental building blocks that constitute any fluidic system. An attractive approach is optical actuation because...
Stretching and squeezing of sessile dielectric drops by the optical radiation pressure (2008)
Chraibi, Hamza, Lasseux, Didier, Arquis, Eric, Wunenburger, Régis, Delville, Jean-Pierre
We study numerically the deformation of sessile dielectric drops immersed in a second fluid when submitted to the optical radiation pressure of a continuous Gaussian laser wave. Both drop stretching...
Stretching and squeezing of sessile dielectric drops by the optical radiation pressure (2008)
Chraibi, Hamza, Lasseux, Didier, Arquis, Eric, Wunenburger, Régis, Delville, Jean-Pierre
We study numerically the deformation of sessile dielectric drops immersed in a second fluid when submitted to the optical radiation pressure of a continuous Gaussian laser wave. Both drop stretching...
Liquid optical fibers with multistable core actuated by light radiation pressure (2008)
Brasselet, Etienne, Wunenburger, Regis, Delville, Jean-Pierre
We report on spatio-temporal behavior of self-adapted dielectric liquid columns generated and sustained by light radiation pressure. We show that single or multi-valued liquid column diameter depends...
Brasselet, Etienne, Delville, Jean-Pierre
We present an electromagnetic model describing liquid-core liquid-cladding optical fibers sustained by light radiation pressure that encompass the contribution of all the allowed propagating modes....
Thermocapillary manipulation of microfluidic droplets: Theory and applications (2008)
Gallaire, François, Baroud, Charles, Delville, Jean-Pierre
It was recently demonstrated by our group that a focused laser beam could be used to produce a net force on a moving microfluidic drop. The aim of the paper is to establish a scaling law for this net...
Bridging dielectric fluids by light: a ray optics approach (2008)
Schroll, Robert D., Brasselet, Etienne, Zhang, Wendy W., Delville, Jean-Pierre
Rayleigh-Plateau instability is known to impose a stability limit for the length of a liquid bridge in weightless conditions. This fundamental limit may be exceeded by using a light field to form and...
Liquid optical fibers with multistable core actuated by light radiation pressure (2008)
Brasselet, Etienne, Wunenburger, Regis, Delville, Jean-Pierre
We report on spatio-temporal behavior of self-adapted dielectric liquid columns generated and sustained by light radiation pressure. We show that single or multi-valued liquid column diameter depends...
Brasselet, Etienne, Delville, Jean-Pierre
We present an electromagnetic model describing liquid-core liquid-cladding optical fibers sustained by light radiation pressure that encompass the contribution of all the allowed propagating modes....
Thermocapillary manipulation of microfluidic droplets: Theory and applications (2008)
Gallaire, François, Baroud, Charles, Delville, Jean-Pierre
It was recently demonstrated by our group that a focused laser beam could be used to produce a net force on a moving microfluidic drop. The aim of the paper is to establish a scaling law for this net...
Bridging dielectric fluids by light: a ray optics approach (2008)
Schroll, Robert D., Brasselet, Etienne, Zhang, Wendy W., Delville, Jean-Pierre
Rayleigh-Plateau instability is known to impose a stability limit for the length of a liquid bridge in weightless conditions. This fundamental limit may be exceeded by using a light field to form and...
Laser Switching and Sorting for High Speed Digital Microfluidics (2008)
Robert De Saint Vincent, Matthieu, Wunenburger, Régis, Delville, Jean-Pierre
We used thermocapillary stresses induced locally by laser on flowing drops to build high throughput drop switchers and sorters for digital microfluidics. Since the laser is disconnected to the chip,...
Laser Switching and Sorting for High Speed Digital Microfluidics (2008)
Robert De Saint Vincent, Matthieu, Wunenburger, Régis, Delville, Jean-Pierre
We used thermocapillary stresses induced locally by laser on flowing drops to build high throughput drop switchers and sorters for digital microfluidics. Since the laser is disconnected to the chip,...
ISSENMANN , Bruno, Régis Wunenburger, Sébastien Manneville, Jean-Pierre Delville
En focalisant une onde acoustique sur l'interface entre deux fluides, on déforme cette interface par pression de radiation. Si l'interface est totalement transparente, la déformation de l'interface...
Contrôle tout-optique du cycle de la vie d'une gouttelette en microcanal (2007)
ROBERT DE SAINT VINCENT , Matthieu, François Gallaire, Régis Wunenburger, Charles Baroud, Jean-Pierre Delville
La formation et le transport d'une gouttelette dans un microcanal sont généralement imposés par la géométrie figée de ce microcanal. Pour surmonter cette contrainte, nous présentons une...
Simulation numérique de l'hydrodynamique d'interfaces liquide-liquide contrôlées par laser (2007)
CHRAIBI , Hamza, Didier Lasseux, Eric Arquis, Régis Wunenburger, Jean-Pierre Delville
Le contrôle de la déformation sans contact des interfaces liquides à l'échelle micro-métrique est un enjeu majeur pour toute une série d'applications en micro-fluidique. Une technique originale...
Liquid Transport Due to Light Scattering (2007)
Schroll, Robert D., Wunenburger, Régis, Casner, Alexis, Zhang, Wendy W., Delville, Jean-Pierre
Using experiments and theory, we show that light scattering by inhomogeneities in the index of refraction of a fluid can drive a large-scale flow. The experiment uses a near-critical, phase-separated...
Laser-induced hydrodynamic instability of fluid interfaces (2007)
Casner, ALexis, Delville, Jean-Pierre
We report on a new class of electromagnetically-driven fluid interface instability. Using the optical radiation pressure of a cw laser to bend a very soft near-critical liquid-liquid interface, we...
Thermocapillary valve for droplet production and sorting (2007)
Baroud, Charles, Delville, Jean-Pierre, Gallaire, François, Wunenburger, Régis
Droplets are natural candidates for use as microfluidic reactors, if active control of their formation and transport can be achieved. We show here that localized heating from a laser can block the...
Hugonnot, Emmanuel, Delville, Marie-Hélène, Delville, Jean-Pierre
Even if photochemical deposition of nearly all types of materials has been used for decades to pattern almost any kind of substrate for various applications catalysis, chemical sensing, magnetic data...
Hugonnot, Emmanuel, Delville, Marie-Hélène, Delville, Jean-Pierre
Even if photochemical deposition of nearly all types of materials has been used for decades to pattern almost any kind of substrate for various applications catalysis, chemical sensing, magnetic data...
Thermocapillary valve for droplet production and sorting (2007)
Baroud, Charles, Delville, Jean-Pierre, Gallaire, François, Wunenburger, Régis
Droplets are natural candidates for use as microfluidic reactors, if active control of their formation and transport can be achieved. We show here that localized heating from a laser can block the...
Simulation of an optically induced asymmetric deformation of a liquid-liquid interface (2007)
Chraibi, Hamza, Lasseux, Didier, Arquis, Eric, Wunenburger, Régis, Delville, Jean-Pierre
Deformations of liquid interfaces by the optical radiation pressure of a focused laser wave were generally expected to display similar behavior, whatever the direction of propagation of the incident...
Simulation of an optically induced asymmetric deformation of a liquid-liquid interface (2007)
Chraibi, Hamza, Lasseux, Didier, Arquis, Eric, Wunenburger, Régis, Delville, Jean-Pierre
Deformations of liquid interfaces by the optical radiation pressure of a focused laser wave were generally expected to display similar behavior, whatever the direction of propagation of the incident...
An optical toolbox for total control of droplet microfluidics (2007)
Baroud, Charles, Robert De Saint Vincent, Matthieu, Delville, Jean-Pierre
The use of microfluidic drops as microreactors hinges on the active control of certain fundamental operations, such as droplet formation, transport, division and fusion. Recent work has demonstrated...
An optical toolbox for total control of droplet microfluidics (2007)
Baroud, Charles, Robert De Saint Vincent, Matthieu, Delville, Jean-Pierre
The use of microfluidic drops as microreactors hinges on the active control of certain fundamental operations, such as droplet formation, transport, division and fusion. Recent work has demonstrated...
Liquid Transport Due to Light Scattering (2006)
Schroll, Robert D., Wunenburger, Régis, Casner, Alexis, Zhang, Wendy W., Delville, Jean-Pierre
Using experiments and theory, we show that light scattering by inhomogeneities in the index of refraction of a fluid can drive a large-scale flow. The experiment uses a near-critical, phase-separated...
Light-induced deformation and instability of a liquid interface. II. Dynamics (2006)
Wunenburger, Régis, Casner, Alexis, Delville, Jean-Pierre
We study the dynamics of the deformation of a soft liquid-liquid interface by the optical radiation pressure of a focused cw gaussian laser beam. We measured the temporal evolution of both the hump...
Light-induced deformation and instability of a liquid interface. I. Statics. (2006)
Wunenburger, Régis, Casner, Alexis, Delville, Jean-Pierre
We study in details the deformations of a liquid-liquid interface induced by the electromagnetic radiation pressure of a focused cw laser beam. Using a simple linear model of static equilibrium of...
Light-induced deformation and instability of a liquid interface. II. Dynamics (2006)
Wunenburger, Régis, Casner, Alexis, Delville, Jean-Pierre
We study the dynamics of the deformation of a soft liquid-liquid interface by the optical radiation pressure of a focused cw gaussian laser beam. We measured the temporal evolution of both the hump...
Light-induced deformation and instability of a liquid interface. I. Statics. (2006)
Wunenburger, Régis, Casner, Alexis, Delville, Jean-Pierre
We study in details the deformations of a liquid-liquid interface induced by the electromagnetic radiation pressure of a focused cw laser beam. Using a simple linear model of static equilibrium of...
Nozawa, Koh, Gailhanou, H., Raison, Lydia, Panizza, Pascal, Ushiki, Hideharu, Delville, Jean-Pierre, ...
Control over the synthesis of monodisperse silica particles up to mesoscopic scale is generally made difficult due to intrinsic limitation to submicrometric dimensions and secondary nucleation in...
Growth of monodisperse mesoscopic metal-oxide colloids under constant monomer supply (2005)
Nozawa, Koh, Delville, Marie-Hélène, Ushiki, Hideharu, Panizza, Pascal, Delville, Jean-Pierre
In closed systems, control over the size of monodisperse metal-oxide colloids is generally limited to submicrometric dimensions. To overcome this difficulty, we explore the formation and growth of...
Dissymmetrization of micro-particle surface by laser-induced photochemical deposition (2005)
Hugonnot, Emmanuel, Delville, Marie-Hélène, Delville, Jean-Pierre
We investigate the surface dissymmetrization of micro-sized particles by using the photochemical reduction of chromate ions induced by a strongly focused CW Ar+ laser to nucleate and grow deposits...
Growth of monodisperse mesoscopic metal-oxide colloids under constant monomer supply (2005)
Nozawa, Koh, Delville, Marie-Hélène, Ushiki, Hideharu, Panizza, Pascal, Delville, Jean-Pierre
In closed systems, control over the size of monodisperse metal-oxide colloids is generally limited to submicrometric dimensions...
Hugonnot, Emmanuel, Delville, Marie-Hélène, Delville, Jean-Pierre
Using the photo-chemical deposition of chromium hydroxide layers driven by a continuous Ar+ laser wave in a potassium chromate solution, we explored the adhesion and patterning properties of the...
Dissymmetrization of micro-particle surface by laser-induced photochemical deposition (2005)
Hugonnot, Emmanuel, Delville, Marie-Hélène, Delville, Jean-Pierre
We investigate the surface dissymmetrization of micro-sized particles by using the photochemical reduction of chromate ions induced by a strongly focused CW Ar+ laser to nucleate and grow deposits...
Growth of monodisperse mesoscopic metal-oxide colloids under constant monomer supply (2005)
Nozawa, Koh, Delville, Marie-Hélène, Ushiki, Hideharu, Panizza, Pascal, Delville, Jean-Pierre
In closed systems, control over the size of monodisperse metal-oxide colloids is generally limited to submicrometric dimensions...
Hugonnot, Emmanuel, Delville, Marie-Hélène, Delville, Jean-Pierre
Using the photo-chemical deposition of chromium hydroxide layers driven by a continuous Ar+ laser wave in a potassium chromate solution, we explored the adhesion and patterning properties of the...
Optical Deformability of Fluid Interfaces (2004)
Delville, Jean-Pierre, Casner, Alexis, Wunenburger, Regis, Brevik, Iver
The formation, deformation, and break-up of liquid interfaces are ubiquitous phenomena in nature. In the present article we discuss the deformation of a liquid interface produced by optical radiation...
Laser-induced hydrodynamic instability of fluid interfaces (2003)
Casner, ALexis, Delville, Jean-Pierre
We report on a new class of electromagnetically-driven fluid interface instability. Using the optical radiation pressure of a cw laser to bend a very soft near-critical liquid-liquid interface, we...
Asymmetric Optical Radiation Pressure Effects on Liquid Interfaces Under Intense Illumination (2002)
Casner, Alexis, Delville, Jean-Pierre, Brevik, Iver
Deformations of horizontal liquid interfaces by optical radiation pressure are generally expected to display similar behaviors whatever the direction of propagation of the exciting laser beam is. In...
Lalaude, C., Delville, Jean-Pierre, Garrabos, Yves, Freysz, Eric, Ducasse, A.
We present and analyze the growth of an isolated droplet generated by a laser-induced local quench in composition in a microemulsion. The growth dynamics realized in a capillary and thus under...
Lalaude, C., Delville, Jean-Pierre, Garrabos, Yves, Freysz, Eric, Ducasse, A.
We present and analyze the growth of an isolated droplet generated by a laser-induced local quench in composition in a microemulsion. The growth dynamics realized in a capillary and thus under...