Commissariat a L'energie Atomique

Stephanie Gaugiran

Stephane Getin

Alexandra Fuchs

Guillaume Colas

Jerome Hazart

A process for moving a particle using a device, the device including a substrate, a wave guide and a grating formed on the wave guide. The process includes injecting light with wavelength &#x3bb; into the wave guide, and diffracting the light transmitted through the guide to a medium with an index nsuper in which the particle is located, particle movement forces being generated by the diffraction of light from the grating.

Particle movement device

A method for separation of particles with different sizes. The method introduces radiation in a waveguide, coupled to a second guide in a coupling area, the radiation entraining all particles towards the coupling area, and separates the particles as they pass into the coupling area.

Object separation device using optical method

A method for sorting particles, including: marking the particles to modify their optical index, placing the particles on a waveguide of a support, and injecting light radiation into the waveguide, the injecting causing displacement of particles on the waveguide and separation of the particles.

Particle sorting method

A method for concentrating particles, including: placing the particles close to and/or on at least one waveguide of a support, and injecting light radiation into the waveguide causing grouping of particles into one or plural clusters on the waveguides.

Particle concentration method

This invention relates to a process for moving a particle using a device comprising a substrate (), a wave guide () and a grating () formed on the wave guide, in which:

The invention relates to a sample support designed to support a sample which is to be detected and/or analyzed by a photothermal detection method using an irradiation pump beam irradiating the sample and a detection and/or analysis probe beam. It comprises a substrate supporting a stack of thin dielectric layers forming a Bragg mirror on which the sample will be supported, the stack of thin dielectric layers being used to reflect the pump beam that reaches it. The invention also relates to a device for detection and/or analysis of a sample by a photothermal method, the said device comprising a sample support according to the invention, a means of lighting the sample supported by the said support and supplying a pump beam, a means of detection and/or measurement of the absorption or reflection of the pump beam by the sample when it is illuminated by the said illumination means. Finally, the invention relates to a particular application of the said device.

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Grenoble, France

Stephanie Gaugiran