Publicaciones

Affichage de 15211 à 15220 sur 16309


  • Communication dans un congrès

A 5 mW-290 GHz heterostructure barrier tripler in a waveguide configuration

T. David, M. Guillon, S. Arscott, Alain Maestrini, Tahsin Akalin, Benoît Lecomte, Jorge Carbonell, Michel Chaubet, Patrick Mounaix, Gérard Beaudin, Didier Lippens

An output power of 5 mW has been demonstrated at 290 GHz by tripling a primary signal in the W band. The nonlinear devices are high performance InP-based heterostructure barrier varactors mounted in mechanically tuned waveguide harmonic multiplier. The flange-to-flange maximum efficiency was 5%...

2001 IEEE MTT-S International Microwave Symposium Digest, May 2001, Phoenix, AZ, United States. pp.1661-1664, ⟨10.1109/MWSYM.2001.967224⟩. ⟨hal-02347990⟩

  • Article dans une revue

Bonding in skutterudites : combined experimental and theoretical characterization of CoSb3

Isabelle Lefebvre-Devos, M. Lassalle, X. Wallart, Josette Olivier-Fourcade, L. Monconduit, Jean-Claude Jumas

We report on the bonding in skutterudites using the CoSb3 example. The theoretical electronic structure is calculated in both density-functional theory and empirical tight-binding frameworks. It is shown to be in good agreement with x-ray photoemission and photoabsorption experiments, and with Sb...

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2001, 63 (12), pp.125110/1-7. ⟨10.1103/PhysRevB.63.125110⟩. ⟨hal-00018591⟩

  • Communication dans un congrès

A low vision aid based on a digital logic system

F. Druart, Michel Pommeray, Jean-Claude Kastelik

2001, pp.100-105. ⟨hal-00151722⟩

  • Article dans une revue

Theory of electrical rectification in a molecular monolayer

Christophe Krzeminski, Christophe Delerue, Guy Allan, Dominique Vuillaume, Robert M Metzger

The current-voltage characteristics in Langmuir-Blodgett monolayers of γ-hexadecylquinolinium tricyanoquinodimethanide (C16H33Q−3CNQ) sandwiched between Al or Au electrodes is calculated, combining ab initio and self-consistent tight-binding techniques. The rectification current depends not only on...

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2001, 64, 8, pp.085405. ⟨10.1103/PhysRevB.64.085405⟩. ⟨hal-00018578⟩

  • Article dans une revue

Relationship between surface reconstruction and morphology of strained Ga1-xInxP layers grown on GaP(001) by gas source molecular beam epitaxy

X. Wallart, D. Deresmes, F. Mollot

Applied Physics Letters, 2001, 78, pp.2961-2963. ⟨hal-00152078⟩

  • Communication dans un congrès

Emergency calls location using TDOA technique along a motorway dedicated cellular radio network

M. Laoufi, M. Heddebaut, Jean-Michel Rouvaen

2001, pp.930-935. ⟨hal-00152930⟩

  • Communication dans un congrès

Ultrasonic studies of macro-molecular network formation and changes in physical state in media

Georges Nassar, Bertrand Nongaillard

Proceedings of 2001 Ultrasonics International, 2001, Delft, Netherlands. ⟨hal-00152946⟩