Publicaciones

• Article dans une revue

Fully relaxed low-mismatched InAlAs layer on an InP substrate by using a two step buffer

S.R. Plissard, Christophe Coinon, Ydir Androussi, X. Wallart

The strain relaxation in low mismatched InxAl1−xAs layers has been studied by triple axis x-ray diffraction, transmission electron microscopy, and photoluminescence. Using a two step buffer, a fully relaxed top layer has been grown by adapting the composition and thickness of a first “strained...

Journal of Applied Physics, 2010, 107 (1), pp.0161021. ⟨10.1063/1.3275872⟩. ⟨hal-00548708⟩

• Article dans une revue

Graphene buffer layer on Si-terminated SiC studied with an empirical interatomic potential

Evelyne Lampin, Catherine Priester, Christophe Krzeminski, Laurence Magaud

The atomistic structure of the graphene buffer layer on Si-terminated SiC is investigated using a modified version of the environment-dependent interatomic potential. The determination of the equilibrium state by the conjuguate gradients method suffers from a complex multiple-minima energy surface...

Journal of Applied Physics, 2010, 107 (10), pp.103514. ⟨10.1063/1.3357297⟩. ⟨hal-00549078⟩

• Communication dans un congrès

Tunable room temperature THz emission from AlGaN/GaN high electron mobility transistors

Nina Diakonova, A. El Fatimy, Y. Meziani, T. Otsuji, Dominique Coquillat, Wojciech Knap, Frederic Teppe, S. Vandenbrouk, K. Madjour, Didier Theron, Christophe Gaquière, M. A. Poisson, S. Delage

We present experimental results on the Terahertz radiation from high electron mobility transistors at room temperature, which clearly show the tunability of the emission frequency by the gate voltage.

35th International Conference on Infrared, Millimeter and Terahertz Waves, Sep 2010, Rome, Italy. pp.1. ⟨hal-00636136⟩

• Communication dans un congrès

SubfemtoFarad MOS varactor characterization tools

R. Debroucke, J. Larchanche, D. Theron, D. Ducatteau, H. Tanbakuchi, Christophe Gaquière

40th European Microwave Conference, EuMC 2010, 2010, France. pp.783-786. ⟨hal-00550021⟩

• Article dans une revue

Vacuum UV and UV spectroscopy of a N2-Ar mixtures discharge created by a RF helical coupling device

Corinne Foissac, Jaroslav Krištof, Adriana Annusova, V. Martisovits, Pavel Veis, Philippe Supiot

Optical emission spectroscopy in vacuum ultraviolet and UV spectral ranges is applied to study densities, and vibrational and rotational temperatures of the N2 molecule in a nitrogen–argon (0–95% Ar) plasma sustained at a pressure of 400 Pa by a helical cavity supplied with a power of 28 W and an...

Plasma Sources Science and Technology, 2010, 19, pp.0550061-12. ⟨10.1088/0963-0252/19/5/055006⟩. ⟨hal-00549499⟩

• Article dans une revue

Millimeter-wave communicating-radars for enhanced vehicle-to-vehicle communications

M. Heddebaut, F. Elbahhar, Christophe Loyez, N. Obeid, N. Rolland, Atika Rivenq, Jean-Michel Rouvaen

Transportation research. Part C, Emerging technologies, 2010, 18, pp.440-456. ⟨10.1016/j.trc.2009.05.004⟩. ⟨hal-00549548⟩

• Article dans une revue

Plasma excitations in field effect transistors for terahertz detection and emission

W. Knap, D. Coquillat, N. Dyakonova, F. Teppe, O. Klimenko, H. Videlier, S. Nadar, J. Lusakowski, G. Valusis, F. Schuster, B. Giffard, T. Skotnicki, Christophe Gaquière, A. El Fatimy

Comptes Rendus. Physique, 2010, 11, pp.433-443. ⟨10.1016/j.crhy.2010.06.010⟩. ⟨hal-00549459⟩

• Article dans une revue

Adjustable supercontinuum laser source with low coherence length and low timing jitter

Marco Andreana, Anne Bertrand, Y. Hernandez, Philippe Leproux, Vincent Couderc, Stéphane Hilaire, Guillaume Huss, D. Giannone, Alessandro Tonello, Alexis Labruyère

This paper introduces a supercontinuum (SC) laser source emitting from 400 nm to beyond 1750 nm, with adjustable pulse repetition rate (from 250 kHz to 1 MHz) and duration (from ~200 ps to ~2 ns). This device makes use of an internally-modulated 1.06 μm semiconductor laser diode as pump source. The...

Proceedeing SPIE Europe, 2010, 7714, pp. 771404. ⟨10.1117/12.854237⟩. ⟨hal-00633563⟩

• Article dans une revue

Circularly polarized millimeter-wave antenna using 0-level packaging

E. Herth, N. Rolland, T. Lasri

IEEE Antennas and Wireless Propagation Letters, 2010, 9, pp.934-937. ⟨10.1109/LAWP.2010.2080310⟩. ⟨hal-00549483⟩

• Communication dans un congrès

Sub-Terahertz imaging with AlGaN/GaN MISFETs

Salman Nadar, Oleg Klimenko, Hadley Videlier, Dominique Coquillat, Nina Diakonova, Frederic Teppe, Wojciech Knap, K. Madjour, Guillaume Ducournau, Christophe Gaquière, M. A. Poisson, J. Torres, J. Szczytko, A. Dobroiu, C. Otani

We evaluate the optical performance of AlGaN/GaN MISFETs as a non-resonant sub-terahertz, room temperature detector. The single-pixel responsivity and the noise equivalent power are determined. The efficiency of the detection is demonstrated by the room temperature imaging of different solutions of...

35th International Conference on Infrared, Millimeter and THz Waves, IRMMW-THz 2010, Sep 2010, Rome, Italy. pp.1, ⟨10.1109/ICIMW.2010.5612996⟩. ⟨hal-00636141⟩