Publications

• Communication dans un congrès

A fast and functional technique for the noise figure measurement of differential amplifiers

Yogadissen Andee, Jérôme Prouvée, François Graux, Francois Danneville

This paper presents an original technique to measure the noise figure of differential amplifiers with a four-port network analyzer. The approach is fast and simple as the S-parameters and the output noise powers are measured directly with the analyzer. There is no need of hybrid couplers or baluns…

10th Conference on PhD Research in Microelectronics and Electronics, PRIME 2014, 2014, Grenoble, France. 4 p., ⟨10.1109/PRIME.2014.6872691⟩. ⟨hal-01056957⟩

• Communication dans un congrès

[Invited] A phoxonic crystal : photonic and phononic bandgaps in a 1D optomechanical crystal

Jordi Gomis-Bresco, Daniel Navarro-Urrios, Mourad Oudich, Said El-Jallal, Amadeu Griol, Daniel Puerto, Emigdio Chavez, Yan Pennec, Bahram Djafari-Rouhani, Francesc Alzina, Alejandro Martínez, C.M. Sotomayor Torres

Recent years have witnessed the increase of interest in cavity optomechanics, which exploits the confinement and coupling of optical waves and mechanical vibrations at the nanoscale. Amongst the different physical implementations, optomechanical (OM) crystals built on semiconductor slabs would…

16th International Conference on Transparent Optical Networks, ICTON 2014, 2014, Graz, Austria. paper We.D6.4, 4 p., ⟨10.1109/ICTON.2014.6876627⟩. ⟨hal-01056950⟩

• Article dans une revue

Comparison of shallow-mesa InAs/AlSb HEMTs with and without early-protection for long-term stability against Al(Ga)Sb oxidation

E. Lefebvre, G. Moschetti, M. Malmkvist, L. Desplanque, X. Wallart, J. Grahn

The fabrication process of InAs/AlSb high electron mobility transistors (HEMTs) has been improved by depositing, after the shallow-mesa isolation of the active area, a thin SiNx-film on the exposed AlGaSb mesa floor. Devices with and without this early-protection against Al(Ga)Sb oxidation have…

Semiconductor Science and Technology, 2014, 29, 035010, 7p. ⟨10.1088/0268-1242/29/3/035010⟩. ⟨hal-00941533⟩

• Article dans une revue

Explicit nonlinear homogenization for magneto-electro-elastic laminated materials

Stefano Giordano

Mechanics Research Communications, 2014, 55, pp.18-29. ⟨10.1016/j.mechrescom.2013.10.008⟩. ⟨hal-00913578⟩

• Communication dans un congrès

Electrical and chemical studies on Al2O3 passivation activation process

Matthieu Pawlik, Jean-Pierre Vilcot, Mathieu Halbwax, D. Aureau, A. Etcheberry, A. Slaoui, T. Schutz-Kuchly, R. Cabal

Passivation process is a key feature to improve the efficiency of silicon solar cells. So far, a 20nm-thick layer of Al2O3 grown by Plasma Enhanced Atomic Layer Deposition (PE-ALD) followed by a 450°C anneal during 15 to 30 min gives the best results in surface carrier recombination velocities on p…

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium Y - Advanced materials and characterization techniques for solar cells II, 2014, Lille, France. ⟨hal-00964247⟩

• Article dans une revue

Longitudinal and transversal polarization switching in strained ferroelectrics

Laurent Baudry, Igor A. Luk'Yanchuk, A. Razumnaya

Using the multicomponent Landau-Devonshire functional we study the field-induced polarization switching in c-oriented ferroelectric phase of epitaxial perovskite film and found that two different regimes are possible: (i) longitudinal switching with change of the polarization modulus and (ii)…

Ferroelectrics, 2014, 13th International Meeting on Ferroelectricity, 461 (1), pp.22-28. ⟨10.1080/00150193.2014.889528⟩. ⟨hal-01044688⟩

• Communication dans un congrès

Multiuser phase coded costas signals with improved cross-correlation and partial cross-ambiguity properties

Nadjah Touati, Charles Tatkeu, Atika Rivenq, Thierry Chonavel

Costas codes are a variant of frequency hopping codes that achieve the «thumbtack» auto-ambiguity function needed in radar applications. However, they may show poor cross- ambiguity properties when selected and assigned randomly which makes them poorly adapted to multiuser radar applications. In…

RADAR 2014, International Radar Conference, Oct 2014, Lille, France. 6p, ⟨10.1109/RADAR.2014.7060452⟩. ⟨hal-01213623⟩

• Article dans une revue

Noise performance of frequency modulation Kelvin force microscopy

Heinrich Diesinger, D. Deresmes, Thierry Melin

Noise performance of a phase-locked loop (PLL) based frequency modulation Kelvin force microscope (FM-KFM) is assessed. Noise propagation is modeled step by step throughout the setup using both exact closed loop noise gains and an approximation known as "noise gain" from operational…

Beilstein Journal of Nanotechnology, 2014, 5, pp.1-18. ⟨10.3762/bjnano.5.1⟩. ⟨hal-00950258⟩

• Communication dans un congrès

Sensing light and sound velocities of fluids in 2D phoxonic crystal slab

Yan Pennec, R. Moiseyenko, Bahram Djafari-Rouhani, S. Amoudache, R. Tigrine, R. Lucklum, A. Khater

We study theoretically the potentiality of dual phononic-photonic (the so-called phoxonic) crystals for sensing applications. In this work, we study the transmission normal to a periodically perforated silicon slab when the surrounding medium is a liquid. We investigate the existence of well-…

13th IEEE SENSORS Conference, SENSORS 2014, Nov 2014, Valencia, Spain. pp.355-357, ⟨10.1109/ICSENS.2014.6985007⟩. ⟨hal-03508195⟩

• Article dans une revue

Fabrication of superhydrophobic and highly oleophobic silicon-based surfaces via electroless etching method

Thi Phuong Nhung Nguyen, Renaud Dufour, Vincent Thomy, Vincent Senez, Rabah Boukherroub, Yannick Coffinier

This study reports on a simple method for the preparation of superhydrophobic and highly oleophobic nanostructured silicon surfaces. The technique relies on metal-assisted electroless etching of silicon in sodium tetrafluoroborate (NaBF4) aqueous solution. Then, silver particles were deposited on…

Applied Surface Science, 2014, 295, pp.38-43. ⟨10.1016/j.apsusc.2013.12.166⟩. ⟨hal-00946706⟩