Abstract: The present invention relates to a scanner provided with a vibratory beam on or in which is formed a phased array intended to extract according to either one of two parallel faces of the beam a light radiation that could be emitted by a light source.

Abstract: A nanowire forming method, including the forming of a DNA origami having through openings, and the forming in the through openings of portions forming all or part of the nanowires.

Abstract: A MicroElectroMechanical System is provided, with an active element configured to carry out an electromechanical function, the active element including, from an upper face to a lower face substantially parallel to the upper face, an active layer, a core layer, and a retention layer, the active layer being configured to, under the effect of a first electric signal, go into a mechanically stressed state, configured to generate a bending of the active element in a direction perpendicular to a front face thereof, and vice versa, the active layer, the core layer, and the retention layer being arranged so that a neutral axis, associated with an elongation of zero in a case of bending of the active element, is located in a volume of one or the other of the core layer and of the retention layer, and the core layer further includes at least 20% recesses in its volume.

Abstract: A scanner is provided with a plurality of elementary scanners each able to scan a different surface by means of a light beam. Each elementary scanner comprises a beam, for example a vibrating beam, on or in which a phase-controlled array is formed, intended to extract, at a face of the beam, a light beam able to be emitted by a light source. At least one beam of one of the elementary scanners, referred to as the first scanner, has, at rest, a deflection different from that of the beams of the other elementary scanners. This arrangement enables the first scanner to scan a surface, referred to the first surface, different from that scanned by the other elementary scanners. The optical scanner according to the present invention makes it possible to cover a relatively large surface while keeping appreciable compactness.

Abstract: The invention relates to a method for transferring at least one layer of material, comprising: producing first and second separating layers (108, 110), one against the other, on a first substrate (104); producing the layer to be transferred on the second separating layer (110); securing the layer to be transferred to a second substrate (106), forming a stack of different materials; and performing mechanical separation at the interface between the separating layers; in which the materials of the stack are such that the interface between the first and second separating layers has the weakest adhesion force, and the method comprises a step reducing an initial adhesion force of the interface between the first and second separating layers.

Abstract: A portable virtual, augmented, or mixed reality device, including: a mount intended to be worn on a user's head; a display screen attached to the mount and intended to be arranged in front of one of the user's eyes; a plurality of ultrasound transducers attached to the mount; and a control circuit configured to control the display screen to display images, and the ultrasound transducers to generate, in air, at a distance from the mount, a pressure distribution detectable by the user's hand to obtain a haptic effect.

Abstract: Pyroelectric detection device, including at least: a substrate; a membrane arranged on the substrate; a pyroelectric detection element arranged on the membrane or forming at least one part of the membrane, and including at least one portion of pyroelectric material arranged between first and second electrodes; a cavity passing through the substrate, emerging opposite a part of the membrane which forms a bottom wall of the cavity, and including side edges formed by the substrate; an element for stiffening the membrane arranged in the cavity, partially filling the cavity, made integral with the side edges of the cavity at at least two distinct anchoring regions, and arranged against the membrane.

Abstract: A scanner provided with a plurality of elementary scanners, especially two elementary scanners, referred to as a first and second scanner respectively. In particular, the first scanner and the second scanner are arranged to scan, each with an optical beam, respectively, a first surface and a second surface included in the first surface and of a smaller extent than the latter.

Abstract: The present invention relates to a scanner provided with a plurality of elementary scanners each able to scan a different surface by means of a light beam. In this regard, each elementary scanner comprises a beam, for example a vibrating beam, on or in which a phase-controlled array is formed, intended to extract, at a face of the beam, a light beam able to be emitted by a light source. According to the present invention, at least one beam of one of the elementary scanners, referred to as the first scanner, has, at rest, a deflection different from that of the beams of the other elementary scanners. This arrangement enables the first scanner to scan a surface, referred to the first surface, different from that scanned by the other elementary scanners. In other words, the optical scanner according to the present invention makes it possible to cover a relatively large surface while keeping appreciable compactness.

Abstract: The present invention relates to a scanner provided with a vibratory beam on or in which is formed a phased array intended to extract according to either one of two parallel faces of the beam a light radiation that could be emitted by a light source.

Abstract: A scanner includes at least a support including at least one first movable part, an actuator configured to move the first movable part of the support, and a phased optical grating disposed on the first movable part of the support. The grating includes at least one plurality of optical phase shifters and an optical source coupled to a plurality of optical phase shifters which is able to emit an optical beam coming from the optical source.

Abstract: A detection device for a coherent lidar imaging system includes an integrated detector comprising a matrix array of pixels distributed over N columns and M rows and comprising an optical guide, called reference guide, configured so as to receive a laser beam, called reference beam, N optical guides, called column guides, coupled to the reference guide, each column guide being coupled to M optical guides, called row guides, the M row guides being configured so as to route part of the reference beam into each pixel of the column, called pixel reference beam, each pixel of the integrated detector comprising: a guided photodiode coupled to an optical detection guide, a diffraction grating, called pixel grating, configured so as to couple a portion of a beam illuminating the pixel into the guided photodiode, a coupler, called pixel coupler, configured so as to couple the pixel coupled beam and at least a fraction of the pixel reference beam into the detection guide, an electronic readout and preprocessing circuit.

Abstract: A detection device for a coherent imaging system includes a detector comprising a matrix array of pixels, each pixel comprising a photodetector component having a photosensitive surface, the detector being designed to be illuminated by a coherent beam, called the image beam consisting of grains of light called speckle grains, a matrix array of transmissive deflecting elements configured to be individually orientable by means of an electrical signal, so as to deflect a fraction of the image beam incident on the group, and thus modify the spatial distribution of the speckle grains in the plane of the photosensitive surface, each group of one or more pixels further comprising a feedback loop associated with the deflecting element and configured to actuate the deflecting element so as to optimize the signal-to-noise ratio from the light detected by the one or more photodetector components of the group of pixels, the feedback loop comprising a feedback circuit.

Abstract: The invention relates to a method for transferring at least one layer of material, comprising: producing first and second separating layers (108, 110), one against the other, on a first substrate (104); producing the layer to be transferred on the second separating layer (110); securing the layer to be transferred to a second substrate (106), forming a stack of different materials; and performing mechanical separation at the interface between the separating layers; in which the materials of the stack are such that the interface between the first and second separating layers has the weakest adhesion force, and the method comprises a step reducing an initial adhesion force of the interface between the first and second separating layers.

Abstract: Pyroelectric detection device, comprising at least: a suspended membrane; a pyroelectric detection element located on the suspended membrane and comprising at least one portion of pyroelectric material located between first and second electrodes, the first electrode being located between said at least one portion of pyroelectric material and the suspended membrane; and in which the membrane and the pyroelectric detection element are subjected to a higher compression stress than a limiting buckling stress of the suspended membrane and the pyroelectric detection element and together form a bistable structure.

Abstract: An acoustic microelectronic device includes a support, a set of at least one membrane suspended on a face of the support above a cavity by an anchoring zone, and at least one acoustic insulation trench arranged adjacent to the membrane. The device includes at least one bridge connecting the portions of two opposite edges of the trench and located overhanging at least one zone of the trench so as to form, in the zone of the trench, an acoustic insulation box below the bridge.

Abstract: A scanner including at least: a support including at least one first movable part, an actuator configured to move the first movable part of the support, and a phased optical grating disposed on the first movable part of the support and including at least one plurality of optical phase shifters and an optical source coupled to a plurality of optical phase shifters which is able to emit an optical beam coming from the optical source.

Abstract: A portable virtual, augmented, or mixed reality device, including: a mount intended to be worn on a user's head; a display screen attached to the mount and intended to be arranged in front of one of the user's eyes; a plurality of ultrasound transducers attached to the mount; and a control circuit configured to control the display screen to display images, and the ultrasound transducers to generate, in air, at a distance from the mount, a pressure distribution detectable by the user's hand to obtain a haptic effect.

Abstract: A MicroElectroMechanical System is provided, with an active element configured to carry out an electromechanical function, the active element including, from an upper face to a lower face substantially parallel to the upper face, an active layer, a core layer, and a retention layer, the active layer being configured to, under the effect of a first electric signal, go into a mechanically stressed state, configured to generate a bending of the active element in a direction perpendicular to a front face thereof, and vice versa, the active layer, the core layer, and the retention layer being arranged so that a neutral axis, associated with an elongation of zero in a case of bending of the active element, is located in a volume of one or the other of the core layer and of the retention layer, and the core layer further includes at least 20% recesses in its volume.

Abstract: Pyroelectric detection device, including at least: a substrate; a membrane arranged on the substrate; a pyroelectric detection element arranged on the membrane or forming at least one part of the membrane, and including at least one portion of pyroelectric material arranged between first and second electrodes; a cavity passing through the substrate, emerging opposite a part of the membrane which forms a bottom wall of the cavity, and including side edges formed by the substrate; an element for stiffening the membrane arranged in the cavity, partially filling the cavity, made integral with the side edges of the cavity at at least two distinct anchoring regions, and arranged against the membrane.