Publications

• Article dans une revue

Double negative media using interconnected Omega-type metallic particles

Eric Lheurette, O. Vanbesien, D. Lippens

We report on broadband low-loss properties of Ω-based metamaterials. It is shown that interconnecting elementary current-loops via their arms can yield to a relative bandwidth of around 70% for infinite arrays. Combining interconnected and disconnected sections permits one to engineer the left-…

Microwave and Optical Technology Letters, 2007, 49, pp.84-90. ⟨10.1002/mop.22034⟩. ⟨hal-00255773⟩

• Article dans une revue

High mobility metamorphic AlSb/InAs heterostructures grown on InP substrates

L. Desplanque, D. Vignaud, X. Wallart

Journal of Crystal Growth, 2007, 301-302, pp.194-198. ⟨10.1016/j.jcrysgro.2006.11.229⟩. ⟨hal-00285629⟩

• Article dans une revue

Thin Pb(ZrxTi1-x)O3 (PZT) rhombohedral compositions deposited on the Si-substrate and its non-linear piezoelectric response

J. Nosek, M. Pokorny, M. Sulc, L. Burianova, Caroline Soyer, Denis Remiens

Ferroelectrics, 2007, 351, pp.112-121. ⟨10.1080/00150190701354075⟩. ⟨hal-00285655⟩

• Communication dans un congrès

Electronic transport through alkylthiol monolayers under mechanical stress measured by Conducting-AFM

S. Lenfant, D. Deresmes, D. Vuillaume

European Materials Research Society Spring Meeting, Symposium K : Nanoscale self-assembly and patterning, 2007, Strasbourg, France. ⟨hal-00285224⟩

• Communication dans un congrès

Caractérisation expérimentale de HEMTs de puissance destinée à la modélisation

N. Defrance, H. Gerard, Jean-Claude de Jaeger, B. Grimbert, Raphaël Aubry, Marie-Antoinette Di Forte-Poisson

15èmes Journées Nationales Microondes, JNM 2007, May 2007, Toulouse, France. pp.1D14-1-4. ⟨hal-00370330⟩

• Article dans une revue

Effect of growth temperature on defect states of GaNAsSb intrinsic layer in GaAs/GaNAsSb/GaAs photodiode for 1.3µm application

Satrio Wicaksono, Soon Fatt Yoon, Wan Khai Loke, Kianhuan Tan, Kim Luong Lew, Malek Zegaoui, Jean-Pierre Vilcot, Didier Decoster, Jean Chazelas

A GaAsSbN layer closely lattice matched to GaAs was used as an intrinsic layer (i layer) in a GaAsGaAsSbNGaAs p-i-n photodiode with response up to 1.3 μm. Deep level transient spectroscopy measurement on the GaAsGaAsSbNGaAs reveals two types of hole traps (HTs) in the GaAsSbN i layer; (i) HT1: a…

Journal of Applied Physics, 2007, 102 (4), pp.044505. ⟨10.1063/1.2769801⟩. ⟨hal-00283082⟩

• Article dans une revue

Low electron mobility of field-effect transistor determined by modulated magnetoresistance

R. Tauk, J. Lusakowski, W. Knap, A. Tiberj, Z. Bougrioua, M. Azize, P. Lorenzini, M. Sakowicz, K. Karpierz, C. Fenouillet-Beranger, M. Casse, C. Gallon, F. Boeuf, T. Skotnicki

Journal of Applied Physics, 2007, 102 (10), pp.103701.1. ⟨hal-00389540⟩

• Communication dans un congrès

Far field beam patterns of terahertz quantum cascade lasers

Wilfried Maineult, Stefano Barbieri, Alessio Andronico, Carlo Sirtori, Giuseppe Leo, Jean-Francois Lampin, Tahsin Akalin, Emilien Peytavit, Jesse Alton, Harvey E. Beere, David Ritchie

International Conference on Intersubband Transitions in Quantum Wells, ITQW07, Sep 2007, Cumbria, United Kingdom. pp.1-2. ⟨hal-00284101⟩

• Communication dans un congrès

QCL with terahertz TEM-horn antennas

Tahsin Akalin, Jean-Francois Lampin, Emilien Peytavit, Stefano Barbieri, Wilfried Maineult, Carlo Sirtori, Jesse Alton, Harvey E. Beere, David Ritchie

Quantum Cascade Lasers are one the most promising approach for the generation of THz waves and particularly in a double plasmon waveguide topology. Stripline resonators with a quasi-TEM mode are indeed interesting for THz-QCLs thanks to a high confinement factor combined with low losses. However…

Joint 32nd International Conference on Infrared and Millimeter Waves and 15th International Conference on Terahertz Electronics, IRMMW-THz2007, Sep 2007, Cardiff, United Kingdom. pp.474-475, ⟨10.1109/ICIMW.2007.4516588⟩. ⟨hal-00284102⟩

• Article dans une revue

Spatially resolved Raman spectroscopy of single- and few-layer graphene

D. Graf, F. Molitor, K. Ensslin, C. Stampfer, A. Jungen, C. Hierold, L. Wirtz

We present Raman spectroscopy measurements on single- and few-layer graphene flakes. Using a scanning confocal approach we collect spectral data with spatial resolution, which allows us to directly compare Raman images with scanning force micrographs. Single-layer graphene can be distinguished from…

Nano Letters, 2007, 7 (2), pp.238-242. ⟨10.1021/nl061702a⟩. ⟨hal-00283156⟩