Publications

• Article dans une revue

Terahertz time-domain spectroscopy of absorbing materials and of metamaterials

Jean-Louis Coutaz, M. Bernier, Frédéric Garet, S. Joly, Y. Miyake, H. Minamide, Eric Lheurette, Didier Lippens

This paper gives a review of recent works we performed in view of characterizing natural materials and metamaterials by terahertz time-domain spectroscopy. We address materials that exhibit a low transmittance in given narrow spectral bands or over the whole experimental spectral window. We give…

Terahertz Science and Technology, 2014, 7, pp.53-69. ⟨10.11906/TST.053-069.2014.06.05⟩. ⟨hal-01020491⟩

• Article dans une revue

Dirac cones, topological edge states, and nontrivial flat bands in two-dimensional semiconductors with a honeycomb nanogeometry

Efterpi Kalesaki, Christophe Delerue, Cristiane Morais Smith, Wouter Beugeling, Guy Allan, Daniel Vanmaekelbergh

We study theoretically two-dimensional single-crystalline sheets of semiconductors that form a honeycomb lattice with a period below 10 nm. These systems could combine the usual semiconductor properties with Dirac bands. Using atomistic tight-binding calculations, we show that both the atomic…

Physical Review X, 2014, 4 (1), pp.0110101. ⟨10.1103/PhysRevX.4.011010⟩. ⟨hal-00939871⟩

• Communication dans un congrès

Pulse compression waveforms design and Cross-ambiguity processing for Radar applications

Nadjah Touati, Charles Tatkeu, Atika Rivenq, Yassin El Hillali, Thierry Chonavel

Radar waveforms design is an important step to design a hole radar system. In this paper, several waveforms based on modified Costas codes are used. The properties and performances are tested and compared. We propose a detection based on cross-ambiguity calculation for these waveforms. Indeed, such…

2014 International Symposium on signal, Image, Video and Communications - ISIVC 2014, Nov 2014, Marrakech, Morocco. 4p. ⟨hal-01213638⟩

• Communication dans un congrès

[Invited] MEMS research, applications and results

S. Arscott

Workshop on Nanoscale Processing for MEMS and NEMS, 2014, Villeneuve d'Ascq, France. ⟨hal-00976620⟩

• Communication dans un congrès

A real-time terahertz beam monitoring application with a 1024-pixel CMOS terahertz camera module

Richard Al Hadi, Jean-Francois Lampin, Ullrich Pfeiffer

In this paper a terahertz beam monitoring application of an optically pumped molecular terahertz laser with a 1024-pixel CMOS terahertz camera is presented. The terahertz camera has been used to detect variations in real-time of the terahertz source beam around 2.52 THz.

Conference on Lasers and Electro-Optics, CLEO 2014, Laser Science to Photonic Applications, 2014, San Jose, CA, United States. ⟨hal-00975794⟩

• Communication dans un congrès

Step-conformal deposition of TiO2 and MnO2 electrodes on advanced silicon microstructures for 3D Li-ion microbatteries and micro-supercapacitors

Étienne Eustache, Camille Douard, Pascal Tilmant, Laurence Morgenroth, Pascal Roussel, Thierry Brousse, Christophe Lethien

To get autonomous smart microsystem, a miniaturized power source should be integrated. As the device is surface limited, the energy and power performances of commercially available planar microbatteries and micro-supercapacitors are not sufficient to reach this goal. To improve their performances…

European Materials Research Society Spring Meeting, E-MRS Spring 2014, 2014, Lille, France. ⟨hal-00976637⟩

• Communication dans un congrès

Pushing the limits of GaN-on-silicon device breakdown voltage for high power applications

Nicolas Herbecq, Isabelle Roch-Jeune, F Medjdoub

CMOS Emerging Technologies Research Symposium, 2014, Grenoble, France. ⟨hal-00976633⟩

• Communication dans un congrès

Acousto-optic couplings in two-dimensional lithium niobate phoxonic crystal

Quentin Rolland, Samuel Dupont, Joseph Gazalet, Jean-Claude Kastelik

We investigate the acousto-optic couplings in two-dimensional infinite piezoelectric phoXonic crystal cavities. The periodic structure considered consists in a square array of air inclusions drilled in Lithium Niobate matrix. This structure allows the simultaneous confinement of acoustic and optic…

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium D - Phonons and fluctuations in low dimensional structures, 2014, Lille, France. ⟨hal-00976642⟩

• Article dans une revue

Improved efficiency by the effect of strain on the structure of a solar cell based on GaInP/GaAs

Abdelkader Aissat, Rachid Bestam, Jean-Pierre Vilcot

This work is aimed at the study of GaInP-based photovoltaic cell. The effects of In content, lattice parameter mismatch and thickness of the SiO2 insulating layer on the characteristics and efficiency of the GaInP structure were investigated. We noticed that for higher In concentrations, the band…

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering, 2014, 3, pp.7038-7046. ⟨hal-00947584⟩

• Communication dans un congrès

Caractérisation des propriétés élastiques du PZT déposé en couches minces par acoustique picoseconde

F. Casset, Arnaud Devos, A. Le Louarn, P. Emery, G. Le Rhun, S. Fanget, E. Defay

12ème Congrès Français d'Acoustique, CFA 2014, 2014, Poitiers, France. Session APUS2-2 : Contrôles et essais non-destructifs II, papier CFA2014/208, 530-534. ⟨hal-00978406⟩