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

Commissariat a L'energie Atomique

Thales

Alexandre Mary

Salim Boutami

Pierre Imperinetti

Wilfried Rabaud

Geoffroy Dumont

Agnès Arnaud

Stéphane Pocas

Stefan Landis

Jean-Jacques Yon

Yohan Desieres

Jérôme Le Perchec

Roch Espiau De Lamaestre

Luc Andre

Dominique Foucret

An electrode () of metallic material comprising an axis of revolution () and a bottom face () of outer diameter greater than the outer diameter of a top face (), characterized in that it comprises a fin () of revolution about said axis of revolution (), on the bottom part of the lateral face (), said fin () having a radial length L and a thickness h such that the ratio L/h is below a threshold, L and h observing the following relationship: in which:

Electrode of metallic material, and gyrolaser comprising at least one such electrode

A spectral filter (-) comprising at least one metallic layer () structured by at least one hole (-) passing through two opposite mains faces of the metallic layer and comprising, in a plane parallel to a plane of one of the two main faces, a first rectangular section whereof a first side has a dimension between around 40 nm and 100 nm, and whereof a second side, perpendicular to the first side, has a dimension between around 150 nm and 1000 nm, and a second rectangular section centered relative to the first rectangular section, a first side of the second section being parallel to the second side of the first section and having a dimension between around 40 nm and 100 nm.

Nanostructured spectral filter and image sensor

This bolometric array detector for detecting electromagnetic radiation in a predetermined range of infrared or terahertz wavelengths comprises a substrate and an array of bolometric micro-plates for detecting said radiation that are suspended above the substrate by support arms. It comprises a metallic membrane located above and around each micro-plate and in which openings are formed; said openings in metallic membrane are periodically located in it along at least one predetermined axis with a period equal to or less than where &#x3bb; is a wavelength in the wavelength range that is to be detected and n is the average refraction index of the medium that separates the micro-plate from metallic membrane.

Infrared detector based on suspended bolometric micro-plates

The electromagnetic radiation detection device includes, on a same substrate:

Device for detecting an electromagnetic radiation

A bolometric array detector for detecting electromagnetic radiation in a predetermined range of infrared wavelengths includes a substrate; an array of bolometric micro-plates for detecting the radiation suspended above the substrate by support arms; and metallic reflectors formed on the substrate underneath the micro-plates to reflect that portion of the radiation which has passed through said micro-plates without being absorbed by the latter. For each micro-plate, a corresponding reflector includes a first part located underneath the micro-plate which extends as a second part not positioned underneath the micro-plate. At least the second part has surface texturing in a repeating pattern for coupling a portion of incident radiation on the second part to a guided wave that propagates towards the first part of the reflector positioned underneath micro-plate.

An integrated optical coupler including in the medium separating a first integrated waveguide from a second substantially parallel integrated waveguide, a succession of strips parallel to one another and orthogonal to the general direction of the waveguides, said strips being made of a material having an absorption preventing the propagation of an electromagnetic wave across its volume, and having:

Integrated optical coupler

Method for fabricating a substrate comprising a nanostructured surface for an organic light emitting diode OLED, in which a layer of an organic resin or of a mineral material having a first nanostructuration is prepared by nano-imprint; the organic resin or mineral material is heated to a temperature equal to or higher than its glass transition temperature Tg or its melting point, and the organic resin or the mineral material is maintained at this temperature for a time tcalled annealing time, whereby the organic resin or the mineral material flows and the first nanostructuration of the layer of organic resin or of mineral material is modified to produce a second nanostructuration; the organic resin or the mineral material is cooled.

Growing community of inventors

Chatellerault, France

Alexandre Mary