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

Hitachi Global Storage Technologies Netherlands B.v.

Thales

Université De Reims Champagne-ardenne

Centre National De La Recherche Scientifique

Alcatel Lucent

Sergio Nicoletti

Mickaël Brun

Salim Boutami

Pierre Labeye

Robert Fontana

Serge Gidon

Alain Gliere

Justin Rouxel

Jui-lung Li

Stefan Landis

Jeffrey Scott Lille

Jeffrey Childress

Bruce Alvin Gurney

Hubert Moriceau

Jordan Asher Katine

Thomas Dudley Boone, Jr

Philippe Andreucci

Liesl Folks

Patrick Chaton

Ludovic Poupinet

Stephane Getin

Pierre Ferret

Salim Mimouni

Mathieu Carras

Pierre Barritault

Virginie Zeninari

Bertrand Parvitte

Xavier Marcadet

Grégory Maisons

Adonis Bogris

Alexandros Kapsalis

Dimitris Syvridis

The present invention relates to a particle detector comprising at least an optical device configured to emit a luminous radiation; and a substrate extending in a plane and defining a channel intended to receive particles, the channel extending principally in a direction perpendicular to the principal plane; characterised in that the detector comprises a matrix of photo detectors and a reflecting surface; the matrix of photo detectors and the reflecting surface being disposed on mutually parallel planes and situated on either side of said portion of the substrate so that a part of the luminous radiation passes through the channel by being diffracted by a particle, then reflects off the reflecting surface, and then reaches the matrix of photo detectors.

Optical detector of particles

The invention relates to an optical coupler () in a vertical configuration, capable of working for a wavelength and comprising a first waveguide () and a second waveguide (). The second waveguide () has a patterning () in the form of a series of patterns (), the patterns () extending along a transverse direction (X) perpendicular to the longitudinal direction (Z), being parallel to each other and orthogonal to the general direction of the first waveguide (), each pattern () being arranged both in the core () and the cladding () of the second waveguide () and having parameters influencing the evanescent wave coupling between the first waveguide () and the second waveguide (), said parameters being chosen such that the coupling (C) is greater than 15%.

Optical coupler provided with a structuration

Modular photoacoustic detection device comprising:

Modular photoacoustic detection device

The invention relates to an electronic component for producing infrared radiation. Said component includes a first element and a second element arranged so as to form a closed vacuum cavity in which at least one resistive element of said electronic component is suspended, the at least one resistive element including metal. Said first and second elements are connected by eutectic solder so as to sealingly close the cavity. Said electronic component comprises connection terminals located outside the closed cavity and connected electrically to the suspended resistive element.

Electronic component with a metal resistor suspended in a closed cavity

The invention relates to an optical coupler () in a vertical configuration, comprising a first waveguide () and a second waveguide (). The optical coupler () comprises a third waveguide () distinct from the first and second waveguides () and extending parallel to the first and second waveguides (), the third waveguide () being arranged between the first waveguide () and the second waveguide () in a transverse direction (X) perpendicular to the longitudinal direction (Z) and having parameters influencing the evanescent wave coupling between the first waveguide () and the second waveguide (), those parameters being chosen such that the coupling (C) is greater than 15%.

Optical coupler provided with an intermediate waveguide

A photoacoustic detection device including a nanophotonic circuit including a first chip on which is formed at least one optical waveguide and in which is formed a set of cavities defining a Helmholtz resonator; at least one optical source capable of emitting an optical signal in a given wavelength range, capable of being modulated at an acoustic modulation frequency, this source being attached to the first chip; a second chip forming a cap for said cavities and including acoustic sensors; and electronic circuits for processing the output of the acoustic sensors formed in the first or the second chip.

Photoacoustic gas sensor with a helmholtz cell

The invention relates to a particle detector including a substrate made of a semiconductor material, in which at least one through-cavity is formed, defined by an input section and an output section, wherein the input section thereof is to be connected to an airflow source, the substrate supporting: an optical means including at least one laser source, and at least one waveguide connected to the at least one laser source and leading into the vicinity of the output section of the cavity; and a photodetector located near the output section of the cavity and offset relative to the optical axis of the optical means.

Particle detector and method for producing such a detector

A device for non-linear conversion of first infrared signal into a second infrared signal with a wavelength that is less than that of the first infrared signal by means of four-wave mixing, which includes at least one portion of SiGe arranged on at least one first layer of material with a refractive index which is less than that of silicon, a germanium concentration in the portion of SiGe which varies continuously between a first value and a second value which is greater than the first value, in a direction which is approximately perpendicular to a face of the first layer on which the portion of SiGe is arranged, and in which a summital part of the portion of SiGe where the germanium concentration is equal to the second value is in contact with a gas and/or a material with a refractive index which is less than that of the silicon.

Device for non-linear signal conversion by four-wave mixing

Microelectronic photoacoustic detection device comprising:

Helmholtz type differential acoustic resonator detection device

A gas detector including a planar mirror; a concave spherical mirror facing the planar mirror, having an optical axis orthogonal to the planar mirror, the distance between the planar and spherical being equal to 0.75 times the radius of curvature of the spherical mirror, to within 10%; a radiation emitter/receiver arranged at the point of intersection of the spherical mirror and of the optical axis; and a radiation receiver/emitter arranged at the point of intersection of the planar mirror and of the optical axis.

Optical gas detector

A heating mold for thermal nanoimprint lithography is disclosed. According to one aspect, the mold includes a resistive heating element and collecting element for collecting the electromagnetic energy of a variable electromagnetic field emitted by a source located outside the mold. The collecting element being connected to the resistive heating element in which the electromagnetic energy is dissipated. A method for manufacturing the mold, a thermal nanoimprint lithography device including the mold, and a a method for preparing a substrate including a surface nanostructured by a thermal nanoimprint lithography technique using the mold is applied are also disclosed.

Mold for thermal nanoimprint lithography, process for fabricating the same, and nanoimprint process using the same

A gas detector including: an assembly of two coaxial parabolic reflective caps having opposite concavities, and a wafer arranged in the focal plane of the two caps, at the center of this focal plane, comprising, back-to-back: a diverging light emitter directed towards the first cap and a light receiver directed towards the second cap, wherein the two caps are distant substantially by the sum of their focal distances plus the thickness of the wafer.

The invention relates to a particle detector including a substrate () made of a semiconductor material, in which at least one through-cavity () is formed, defined by an input section () and an output section (), wherein the input section thereof is to be connected to an airflow source, said substrate supporting: an optical means including at least one laser source (), and at least one waveguide () connected to said at least one laser source and leading into the vicinity of the output section of said cavity; and photodetector means () located near the output section of said cavity and offset relative to the optical axis of the optical means.

A heating mould for thermal nanoimprint lithography, a process of producing the heating mould, and a process for producing a nanostructured substrate which include the heating mould. The heating mould includes the heating mould. The heating mould includes a substrate having a first principal surface and a second principal surface, and a through-cavity extending from a first orifice in the first principal surface up to a second orifice in the second principal surface. The mould also includes a heating layer, an electrically and thermally insulating layer which covers the heating layer and, at least partially, imprint patterns, and leads for supplying an electric current to the heating layer.

Growing community of inventors

Sinard, France

Sergio Nicoletti