Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Benoit Racine

Etienne Quesnel

Pierre Blandin

François Templier

Tony Maindron

Gilles Le Blevennec

Marianne Consonni

Sylvia Meunier

Christelle Laugier

A light-emitting device includes a first electrode reflecting in a spectral range, a second electrode, and a light-emitting layer extending between the first and second electrodes and configured to emit electromagnetic radiation in the spectral range, the electromagnetic radiation emitted by the light-emitting layer being circularly polarized in a first polarization direction, the electromagnetic radiation reflected by the first electrode being circularly polarized in a second polarization direction, opposite to the first polarization direction. The second electrode is structured so as to define opaque patterns in the spectral range, arranged to block transmission of the circularly polarized electromagnetic radiation in the first polarization direction, and a spacing zone spacing apart the opaque patterns from one another and transparent in the spectral range so as to allow transmission of the circularly polarized electromagnetic radiation in the second polarization direction.

Light-emitting device

An imaging element for analysis of a sample includes an electrode adapted to receive the sample, a light-emitting element, disposed opposite the electrode, and separated from the electrode by an insulating protective layer, a voltage-controlled current source configured to supply current to the light-emitting element and comprising a control electrode electrically connected to the electrode, so that said light-emitting element generates a light wave in response to a voltage coming from the sample.

Voltage-responsive imaging element for sample-dependent light emission, imaging device, imaging system, associated analysis method and manufacturing method

A device for imaging electrical activity of a sample, includes a polymer film in which liquid crystal droplets are dispersed, referred to as the PDLC film, a transparent fluidic component in which at least one cavity adapted to contain the sample is arranged, a transparent reference electrode, the PDLC film being arranged between the at least one cavity and the reference electrode and configured to convert an electric field created in a region of the PDLC film in response to an electric potential generated by the sample into a variation in transparency of the region of the PDLC film.

Device for imaging electrical activity of a sample, imaging system, method for analysing a sample and manufacturing method therefor

Device () for characterizing a substance () capable of emitting a photoluminescence radiation (Rp) in a first spectral range, the device () comprising:

Compact device for characterizing a photoluminescent substance

A device for exciting objects with an excitation radiation and for detecting a photoluminescence radiation emitted by the objects after the absorption of the excitation radiation. The device includes a wall in contact with the objects, an organic light-emitting diode for emitting the excitation radiation and transparent to the photoluminescence radiation, an optical resonator tuned to the wavelength of the photoluminescence radiation and located on the side of the organic light-emitting diode opposite to the wall, and at least one sensor of the photoluminescence radiation arranged on the side of the optical resonator opposite to the organic light-emitting diode.

Excitation and photoluminescence detection device

A device includes first and second electrodes that are at least partially transparent in a spectral domain; an electroluminescent layer that lies between the first and second electrodes suitable for emitting electromagnetic radiation in the spectral domain, the electromagnetic radiation being circularly polarized in a first polarization direction; a structured substrate, the first electrode lying between the structured substrate and the electroluminescent layer, the structured substrate including features that are reflective in the spectral domain, and that possess a hollow geometric shape configured so that electromagnetic radiation that passes through the first electrode is reflected from the reflective features while preserving the first polarization direction, a filler material that is transparent in the spectral domain and that is arranged to fill the reflective features so that the structured substrate has a planar surface.

Electroluminescent device

A monolithic display device including a plurality of first pixels capable of emitting light in a first wavelength range, and a plurality of second pixels capable of emitting light in a second wavelength range, the first pixels each including a gallium nitride light-emitting diode, and the second pixels each including an organic light-emitting diode.

Growing community of inventors

Grenoble, France

Benoit Racine