Publicaciones

Affichage de 6841 à 6850 sur 16059

ART

High-definition television transmission at 600 GHz combining THz photonics hotspot and high-sensitivity heterodyne receiver

Guillaume Ducournau, Fabio Pavanello, Alexandre Beck, L. Tohme, S. Blin, P. Nouvel, Emilien Peytavit, Mohamed Zaknoune, P. Szriftgiser, Jean-Francois Lampin

A 600 GHz data transmission using the combination of a photonic emission using a uni-travelling carrier photodiode and an electronic detection is investigated. A high-definition television transmission at this carrier frequency with a very low power at the receiver is reported. Only 10 nW of...

Electronics Letters, 2014, 50 (5), pp.413-415. ⟨10.1049/el.2013.3796⟩. ⟨hal-00955223⟩

COMM

Design and radiation hardness of next generation solar UV radiometers

Samuel Gissot, Ali Benmoussa, Boris Giordanengo, Ali Soltani, Terubumi Saito, Udo Schühle, Udo Kroth, Alexander Gottwald

For next space-based ultraviolet (UV) solar radiometers, we propose a design based on subsystem components that are selected according to lessons learned from previous flying missions and ground irradiation campaigns. UV interference filters inherited from space-based solar missions show strong...

IEEE Nuclear and Space Radiation Effects Conference, NSREC 2014, 2014, Paris, France. paper W-24, 6 p. ⟨hal-01063876⟩

COMM

InAs/AlGaSb Esaki tunnel diodes grown by selective area epitaxy on GaSb (001) substrate

L. Desplanque, Xianglei Han, Maria Fahed, Vinay K. Chinni, David Troadec, M.-P. Chauvat, Pierre Ruterana, Xavier Wallart

We report on the realization of AlGaSb/InAs Esaki tunnel diodes on GaSb (001) substrate. Selective area molecular beam epitaxy of InAs is used to define the area of the diodes down to submicron dimensions. A peak current density up to 1.3 MA/cm2 is achieved.

26th International Conference on Indium Phosphide and Related Materials, IPRM 2014, Compound Semiconductor Week, CSW 2014, 2014, Montpellier, France. paper Mo-C1-6, 2 p., ⟨10.1109/ICIPRM.2014.6880530⟩. ⟨hal-01059835⟩

COMM

Broadband sound attenuation on a periodic array of rectangular profile holes in plate

Rayisa P. Moiseyenko, Yan Pennec, Rémi Marchal, Bernard Bonello, Bahram Djafari-Rouhani

Transmission of acoustic waves through a periodic array of sub-wavelength slits or holes have been studied in several recent works in relation with physical phenomena such as resonant (extraordinary) transmission, broadband sound shielding or acoustic induced transparency (AIT). In this work, we...

SPIE Smart Structures/NDE 2014, Conference 9057 - Active and Passive Smart Structures and Integrated Systems VIII, 2014, San Diego, CA, France. 90571Q, 6 p., ⟨10.1117/12.2044845⟩. ⟨hal-00969103⟩

ART

Graphene nanotransistors for RF charge detection

E. Pallecchi, Q. Wilmart, A.C. Betz, S.H. Jhang, G. Fève, J.M. Berroir, Sylvie Lepilliet, Gilles Dambrine, H. Happy, B. Plaçais

We have studied the static and dynamical properties of a graphene microwave nanotransistor to be used as sensitive fast charge detectors. The channel consists of exfoliated graphene on SiO2 with a 120 nm long, 900-1500 nm wide top-gate deposited on 5 nm AlOx dielectric. The scattering parameters...

Journal of Physics D: Applied Physics, 2014, 47, 094004, 5 p. ⟨10.1088/0022-3727/47/9/094004⟩. ⟨hal-00946703⟩

COMM

A new optimal design method for electrostatically actuated silicon-based MEMS: Application to a micro-gripper with large stroke and high force resolution

A. Grira, C. Rotinat-Libersa, Bernard Legrand, L. Buchaillot

The design of Micro Electro Mechanical Systems (MEMS) is often based on the use of costly trial and error method which depends highly on the technical skills of the involved engineers. The drawback of such a procedure is to lead to sub-optimal designs and poor performance at the end. Some research...

1st International Conference on Engineering and Applied Sciences Optimization, OPT-i 2014, Jun 2014, Kos Island, Greece. pp.2407-2417. ⟨cea-01844451⟩

ART

Two types of MEMS-based oscillating AFM probes

Zhuang Xiong, Estelle Mairiaux, Benjamin Walter, Marc Faucher, Lionel Buchaillot, Bernard Legrand

Most of the commercial Atomic Force Microscope ( AFM) oscillating probes are based on micro-scale cantilevers enabling measurement with pico-Newton force resolution in vacuum. However, the cantilever probes suffer from a degradation of both resonance frequency and quality factor when operating in...

Journal of Chinese Electron Microscopy Society , 2014, 2, pp.137-141. ⟨hal-01960910⟩

COMM

Direct path detection algorithm in multiple input single output configuration for transport applications

Kobenan Ignace Kossonou, Yassin El Hillali, Michael Bocquet, Atika Rivenq, Jamal Assaad

This paper introduces a novel technique that exploits cross-correlation properties of near-orthogonal pseudonoise (PN) codes to estimate the time of arrival of the direct path signal for Multiple Input Single Output (MISO) applications. Indeed, multipath are a source of error in the time...

2014 IEEE International Conference on Ultra-WideBand, ICUWB 2014, Sep 2014, Paris, France. pp.438-443, ⟨10.1109/ICUWB.2014.6959022⟩. ⟨hal-03528685⟩

ART

Cascaded Brillouin fibre lasers coupled to unitravelling carrier photodiodes for narrow linewidth terahertz generation

Guillaume Ducournau, Denis Bacquet, P. Szriftgiser, Fabio Pavanello, Emilien Peytavit, Mohamed Zaknoune, Alexandre Beck, Jean-Francois Lampin

Narrow linewidth terahertz (THz) generation using a cascaded Brillouin fibre laser structure and a unitravelling carrier photodiode is investigated. Using two distributed feedback lasers separated by > 1 THz with 1 MHz initial linewidth, the use of the cascaded Brillouin laser greatly increases...

Electronics Letters, 2014, 50 (9), pp.690-691. ⟨10.1049/el.2014.0521⟩. ⟨hal-01044685⟩

COMM

Assesment of the motion using the ActimedARM: impact of the sensor placement

J. Collet, M. Cerny, L. Delporte, Norbert Noury

no abstract

YBERC14, 2014, Bratislava, Slovakia. ⟨hal-01489943⟩