Publications

• Article dans une revue

Role of compositional fluctuations and their suppression on the strain and luminescence of InGaN alloys

Konstantinos Pantzas, Gilles Patriarche, David Troadec, Mathieu Kociak, Nikolay Cherkashin, Martin Hÿtch, Julien Barjon, Christian Tanguy, Thomas Rivera, Sundaram Suresh, Abdallah Ougazzaden

Advanced electron microscopy techniques are combined for the first time to measure the composition, strain, and optical luminescence, of InGaN/GaN multi-layered structures down to the nanometer scale. Compositional fluctuations observed in InGaN epilayers are suppressed in these multi-layered…

Journal of Applied Physics, 2015, 117 (5), pp.55705. ⟨10.1063/1.4907210⟩. ⟨hal-01721149⟩

• Article dans une revue

Changes of benthic bacteria and meiofauna assemblages during bio-treatments of anthracene-contaminated sediments from Bizerta lagoon (Tunisia)

O. Ben Said, Hela Louati, A. Soltani, Hugues Preud'Homme, Cristiana Cravo-Laureau, P. Got, O. Pringault, Patricia Aissa, Robert Duran

Sediments from Bizerta lagoon were used in an experimental microcosm setup involving three scenarios for the bioremediation of anthracene-polluted sediments, namely bioaugmentation, biostimulation, and a combination of both bioaugmentation and biostimulation. In order to investigate the effect of…

Environmental Science and Pollution Research, 2015, 22 (20), p. 15319-15331. ⟨10.1007/s11356-015-4105-7⟩. ⟨hal-01631846⟩

• Communication dans un congrès

A coupler-free differential noise figure measurement technique without noise source on a two-port network analyzer

Yogadissen Andee, Caroline Arnaud, Philippe Seurre, Francois Danneville

This paper presents a measurement technique for the noise figure of differential amplifiers using commercially-available 2-port network analyzers. It is based on the measurement of the noise wave correlation at the output ports of the differential amplifier. A simple measurement setup is used as…

IEEE Radio and Antenna Days of the Indian Ocean (RADIO), Sep 2015, Belle Mare, Mauritius. ⟨10.1109/RADIO.2015.7323398⟩. ⟨hal-03272704⟩

• Article dans une revue

Tunability of a One-Dimensional Elastic/Piezoelectric Phononic Crystal Using External Capacitances

S. Degraeve, C. Granger, Bertrand Dubus, Jerome O. Vasseur, M. Pham Thi, Anne-Christine Hladky

A superlattice made of alternate rods constituted of piezoelectric ceramic and elastic material is shown, theoretically and experimentally, to exhibit wide Bragg band gaps. The width of these stop bands is affected not only by the elastic impedance ratio between the constituent materials but also…

Acta Acustica united with Acustica, 2015, 101 (3), pp.494-501. ⟨10.3813/AAA.918846⟩. ⟨hal-03300127⟩

• Article dans une revue

Hydrothermal synthesis, phase structure, optical and photocatalytic properties of Zn₂SnO₄ nanoparticles

Monaam Ben Ali, Fatiha Barka-Bouaifel, Habib Elhouichet, Brigitte Sieber, Ahmed Addad, Luc Boussekey, Mokhtar Férid, Rabah Boukherroub

Zinc stannate (Zn₂SnO₄ or ZTO) nanoparticles were synthesized via hydrothermal method using NaOH as a mineralizer. X-ray diffraction (XRD), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM) of the…

• Article dans une revue

Degradation assessment of LYRA after 5 years on orbit : Technology Demonstration

A. Benmoussa, B. Giordanengo, S. Gissot, I. E. Dammasch, M. Dominique, Jean-François Hochedez, A. Soltani, Nour Eddine Bourzgui, T. Saito, U. Schühle, A. Gottwald, U. Kroth, A. R. Jones

We present a long-term assessment of the radiometric calibration and degradation of the Large Yield Radiometer (LYRA), which has been on orbit since 2009. LYRA is an ultraviolet (UV) solar radiometer and is the first space experiment using aboard a pioneering diamond detector technology. We show…

Experimental Astronomy, 2015, 30 (1), pp.29-43. ⟨10.1007/s10686-014-9437-7⟩. ⟨hal-01102475⟩

• Communication dans un congrès

Study of an hybridization gap in a one dimensional piezoelectric phononic crystal

Sid Ali Mansoura, Bruno Morvan, Pierre Maréchal, Anne-Christine Hladky, Bertrand Dubus

A one dimensional Phononic Crystals (PC) composed of a periodic stack including piezoelectric plates is studied. When the size of the pattern is a multiple of the wavelength, Bragg gaps appear based on interference mechanisms. In addition to this property, it is shown in this paper that the use of…

Proceedings of the ICU International Congress on Ultrasonics 2015, May 2015, Metz, France. ⟨10.1016/j.phpro.2015.08.154⟩. ⟨hal-03300132⟩

• Article dans une revue

Frequency response modeling and optimization of a PIN photodiode based on GaN/InGaN adapted to photodetection at a wavelength of 633 nm

M. El Besseghi, Abdelkader Aissat, Bandar Alshehri, Karim Dogheche, El Hadj Dogheche, Didier Decoster

In this paper, the frequency response calculation and optimization of PIN photodiodes based on GaN/InGaN, suitable for photodetection at the wavelength of 633 nm, are presented. The calculations of the impulse as well as the frequency response are performed using the impulse method. The frequency…

Material chemical physics journal, 2015, 162, pp.525-530. ⟨hal-03682556⟩

• Article dans une revue

Surface Plasmon Resonance (SPR) for the Evaluation of Shear-Force-Dependent Bacterial Adhesion

Sabine Szunerits, Rabah Boukherroub, Florin Oancea, Stefan-Ovidiu Dima, Sebastien G. Gouin, Dimitri Alvarez-Dorta, Aritz Yanguas Serrano, Iban Larroulet, Rostyslav Bilyy, Tetiana Dumych, J. Bouckaert, Oleksandr Zagorodko

The colonization of Escherichia coli (E. coli) to host cell surfaces is known to be a glycan-specific process that can be modulated by shear stress. In this work we investigate whether flow rate changes in microchannels integrated on surface plasmon resonance (SPR) surfaces would allow for…

Biosensors, 2015, 5 (2), pp.276-287. ⟨10.3390/bios5020276⟩. ⟨hal-03172933⟩

• Communication dans un congrès

CPW-fed dual band monopole antenna based on conductive polymers

Z. Hamouda, J.-L. Wojkiewicz, A.A. Pud, Lamine Kone, B. Belaabed, S. Bergheul, T. Lasri

This paper describes the design, fabrication and characterization of a flexible CPW-fed monopole organic antenna, based on a multiwall carbon nanotubes (MWCNT) doped Polyaniline (PANI). The antenna is printed on a 130μm Kapton® substrate. The design proposed allows the coverage of two frequency…

9th European Conference on Antennas and Propagation, EuCAP 2015, May 2015, Lisbon, Portugal. pp.7228379. ⟨hal-03538363⟩