Commissariat a L'energie Atomique Et Aux Energies Alternatives

Apix Analytics

Centre National De La Recherche Scientifique

Université Grenoble Alpes

Thomas Alava

Eric Ollier

Zheng Han

Carine Ladner

Fabrice Casset

Laurent Duraffourg

Eric Colinet

Thomas Ernst

Sebastien Hentz

Sébastien Hentz

Bruno Fain

Marc Sansa Perna

Yanxia Hou-Broutin

Bertrand Bourlon

Frederic Progent

Kévin Benedetto

Pascal Mailley

Hadley Videlier

Sebastien Vigne

Valeria Toffoli

Romain Mahieu

Madhav Kumar

Loïc Leroy

A method for controlling a submersible environmental sensor, the sensor including a support having a face which includes a sensitive zone configured to receive at least one species of interest (SOI), anti-fouling means configured to cause at least the sensitive zone to vibrate, and detection means for detecting a presence of the SOI on the sensitive zone, the detection means and the anti-fouling means being carried by the support, wherein the anti-fouling means includes actuators configured to cause the medium to vibrate in a standing mode with a wavelength 3-20 times the size of the SOI to confine the SOI on the sensitive zone, includes activating the anti-fouling means in a de-fouling mode, stopping the anti-fouling means, activating the anti-fouling means to confine the SOI in the sensitive zone, and stopping the anti-fouling means. The method also includes activating the detection means and stopping the detection means.

Submersible environmental sensor incorporating anti-fouling means

A sensor for sensing the concentration of at least one biological species in blood includes a support, at least one waveguide, and an optomechanical resonator hanging to the support. The optomechanical resonator is optically coupled to the waveguide. The optomechanical resonator is configured to vibrate in a volume mode and includes at least one face extending in the plane of the sensor and is configured to receive molecules of the given species. The optical resonator includes a body comprising an optical active area and an optical insulation layer deposited at least in line with the optical active area so as to confine at least partially an electromagnetic wave in the body.

Optomechanical sensor for sensing species' concentration in a liquid medium

A method for regulating, with a computer, a resistive element arranged to deice and/or demist a support, the method including: a) a loop for monitoring the temperature T and the moisture level H at the support; b) a deicing and/or demisting sequence which, as long as the temperature T and the moisture level H monitored by the monitoring loop a) are indicative of an absence of frost or mist on the support, keeps the resistive element inactive and, in the contrary case, demands, in a step b2), the circulation of a current I in the resistive element so that the latter dissipates a thermal power P, adjusted according to the temperature T and the moisture level H, and providing deicing or demisting of the support over a predetermined period D.

Method for regulating a resistive element intended for deicing and/or demisting a support, and the associated device

Thermal flux sensor with heating nanofilaments

Production of a transistor, the channel structure of which comprises at least one finned channel structure, the method comprising: forming, from a substrate (), a molding block (), forming, on the molding block, a thin layer () made from a given semiconductor or semi-metallic material, and consisting of one to ten atomic or molecular monolayers of two-dimensional crystal, withdrawing the molding block while retaining a portion () of the thin layer extending against a lateral face of the molding block, said retained portion () forming a fin that is capable of forming a channel structure of the transistor,

Field effect transistor with an atomically thin channel

A microelectromechanical gas sensor including a fixed part, at least one suspended part in relation to fixed part, at least one sensitive zone carried on the suspended part, the sensitive zone being able to adsorb/absorb and desorb gaseous species or families of gaseous species, a heater for heating at least the sensitive zone, a detector for detecting the adsorption/absorption and desorption of gaseous species or families of gaseous species on the sensitive zone, a controller of controlling the heater so that the heating is applied to at least the sensitive zone with one or more temperature profiles ensuring the adsorption/absorption and desorption of the gaseous species in a controlled manner so as to obtain an individual desorption of each species or families of gaseous species.

Compact gas sensor with enhanced selectivity

Method of fabricating a microelectromechanical structure et comprising two elements suspended from a support, a cavity made in the support, said cavity having two different depths, including:

Method of fabricating a MEMS and/or NEMS structure comprising at least two elements suspended from a support at different distances from said support

A generator of an ion beam is provided, including an ionization chamber provided with an inlet of a fluid to be ionized; a source of ionizing particles configured to impact the fluid in an impact zone of the ionization chamber so as to generate ions; and an extractor of ions generated in a direction of an outlet zone of the generator, the extractor including at least two electrodes, a first electrode referred to as input electrode laterally bordering the impact zone, and at least one second electrode referred to as intermediate electrode located in the impact zone, the at least two electrodes being configured to generate a voltage gradient in the impact zone, with the voltage gradient being configured to direct the generated ions to the outlet zone of the generator.

MEMS device for generating an ion beam

Growing community of inventors

Grenoble, France

Thomas Alava