Abstract: The integrated circuit includes a power amplifier intended to provide a signal in a fundamental frequency band, an antenna, and a matching and filtering network having a first section, a second section, and a third section. The three sections include LC arrangements configured to have an impedance matched to the power amplifier's output in the fundamental frequency band. The LC arrangements of the first section and the second section are configured to have resonant frequencies adapted to attenuate the harmonic frequency bands of the fundamental frequency band.

Abstract: The integrated circuit includes a power amplifier, an antenna, and a matching and filtering network including a direct current power supply stage on an output node of the power amplifier, a first section, and a second section. The direct current power supply stage and the two sections include inductor-capacitor “LC” arrangements configured to have an impedance that is matched to the output of the power amplifier in the fundamental frequency band. The LC arrangements of the direct current power supply stage and of the first section are furthermore configured to have resonant frequencies that are respectively adapted to attenuate harmonic frequency bands of the fundamental frequency band.

Abstract: Method for obtaining an image of a sample (10), comprising: a) illuminating the sample using a light source (11); b) acquiring, using an image sensor (16), a first image (I1,P0) of the sample (10), said image being formed in the detection plane (P0), the first image being representative of an exposure light wave (14) propagating, from the sample, to the image sensor, along a first optical path (L1); the method comprising, following b) c) modifying an optical refractive index, between the image sensor and the sample; d) following c), acquiring a second image (I2,P0) of the sample, said image being representative of the exposure light wave (14) along a second optical path (L2); e) implementing an iterative algorithm that combines the first and second images so as to obtain an image of the sample.

Abstract: Method for determining the sensitivity of a bacterial strain of interest to a viral strain of bacteriophages, the method comprising: a) preparing a sample, this comprising bringing bacteria, belonging to the bacterial strain of interest, into contact with bacteriophages, each bacteriophage belonging to the same viral strain, the bacteria being either in a liquid medium, or in an agar medium; b) placing the sample between a light source and an image sensor, the light source emitting a light wave in an emission spectral band comprised between 500 nm and 600 nm; c) illuminating the sample using the light source and acquiring at least one image of the sample, with the image sensor, in the emission spectral band, no image-forming optic being placed between the sample and the image sensor; d) on the basis of the acquired images, determining a sensitivity of the bacterial strain of interest to the viral strain.

Abstract: Device (10) for depositing particles via the liquid route including a first chamber a second chamber (12), a communication hole between the first chamber (11) and the second chamber (12), and a vent which is provided in the second chamber and which places the second chamber and a medium (200) which is external with respect to the device in communication.

Abstract: An RF circuit for wireless devices comprises a single differential power amplifier and an impedance balancing circuit for each frequency band. The impedance balancing circuit serves both to provide an appropriate impedance at the output of the amplifier as the operating mode of the device changes, and also transforms the differential output of the amplifier to a single-ended output. The impedance balancing circuit optionally comprises a BALUN circuit and a variable capacitor that is varied as the operating mode changes in order to vary the impedance at the output of the amplifier.

Abstract: An RF circuit for wireless devices comprises a single differential power amplifier and an impedance balancing circuit for each frequency band. The impedance balancing circuit serves both to provide an appropriate impedance at the output of the amplifier as the operating mode of the device changes, and also transforms the differential output of the amplifier to a single-ended output. The impedance balancing circuit optionally comprises a BALUN circuit and a variable capacitor that is varied as the operating mode changes in order to vary the impedance at the output of the amplifier.

Abstract: Device (10) for depositing particles via the liquid route including a first chamber (11), a second chamber (12), a communication hole between the first chamber (11) and the second chamber (12), and a vent which is provided in the second chamber and which places the second chamber and a medium (200) which is external with respect to the device in communication.

Abstract: Cryostat (1) for studying samples in a vacuum, which cryostat comprises a cold finger (2) equipped with a finger portion as well as a base portion (10) rigidly connected to the finger portion, which cryostat also includes a sample support (32) mounted on a free end for cooling of the finger portion, wherein this finger portion is placed in a vacuum chamber (4). The vacuum chamber is partially defined by a one-piece hollow part (6) defining an open cavity (46) with a single opening (44) through which the finger portion passes, and the sample support is located inside said open cavity (46). The chamber is also defined by a cryostat body (8) of which an external cylindrical surface with a circular cross-section (36) cooperates with a rotation device (62).

Abstract: A device for emitting radiation by optical pumping. A mechanism emits light, and includes a first resonant cavity having a first input mirror and an output mirror. An optical pumping device emits a pumping beam from the first cavity, the normal to the input surface of the resonant cavity is inclined at an angle ? with respect to the direction of propagation of the pumping beam. A mechanism forms a second resonant cavity for the pumping beam, and includes a second input mirror forming the second cavity with the output mirror of the first cavity, and further includes an optical element, transparent to the pumping wavelength, between the first and second input mirrors.

Abstract: A device for emission of light is made including an emitting structure including an active part and a micro-cavity, delimited by mirrors and containing the active part, and a laser diode designed for pumping the emitting structure. The emitting structure is fixed to the laser diode. The device is particularly applicable to the detection of gas.

Abstract: A light emission device and method for producing the device. The device includes, on a substrate, a stack including an etching stop layer, a first barrier layer, an emitting layer, and a second barrier layer. The stop layer is of the same nature as the emitting layer. One may form a mirror on the stack, eliminate the substrate by etching, and form another mirror on the stop layer to obtain a micro-cavity. The device may be applied in particular to the detection of gas.

Abstract: A tuneable active microcavity and a process for manufacturing a tuneable active microcavity. The microcavity includes a first mirror, a second mirror, and a layer of an active material. A piezoelectric actuator placed outside the space located between the first and second mirrors modifies the relative distance separating the first and second mirrors under action of a control signal. The piezoelectric actuator includes a first face rigidly connected to the first mirror and a second face rigidly connected to the second mirror such that each of the first and second mirrors is free to move under action of the control signal applied to the piezoelectric actuator.

Abstract: According to the invention, a device for emission of light is made comprising an emitting structure (22) comprising an active part (4), and a micro-cavity, delimited by mirrors (14, 20). and containing the active part, and a laser diode (26) designed for pumping the emitting structure. The emitting structure is fixed to the laser diode. The invention is particularly applicable to the detection of gas.

Abstract: Light emission device and method for producing said device.

Abstract: The invention relates to a plasma cell able to be fixed in a vacuum chamber by means of a first flange, having an outer envelope in which a gas under pressure (P′) is added and provided in its upper part with a discharge opening, and electrodes, at least one anode and one cathode, arranged in said envelope and mounted on a second flange, to whose terminals a voltage may be applied, such as to cause ionization of the gas producing the monoatomic species which are to be discharged through the opening. Electrodes can be dismounted and are assembled on a second removable flange. Electrically insulated separation means are provided between cathode and anode(s). A gas inlet opening is provided in the lower part of the envelope.