Publications

• Article dans une revue

Improvement of the oxidation interface in an AlGaAs/AlxOy waveguide structure by using a GaAs/AlAs superlattice

J.Y. Song, S. Bouchoule, G. Patriarche, E. Galopin, A.M. Yacomotti, E. Cambril, Q.G. Kou, David Troadec, J.J. He, J.C. Harmand

The wet oxidation from the mesa sidewalls of AlGaAs/GaAs epitaxial structures is investigated in details. In addition to the intended lateral oxidation of the Al-rich buried layer, we observe a parasitic vertical oxidation of the adjacent layers of lower Al content. This vertical oxidation produces…

Physica Status Solidi A (applications and materials science), 2013, 210, pp.1171-1177. ⟨10.1002/pssa.201228770⟩. ⟨hal-00872060⟩

• Article dans une revue

Power performance at 40 GHz on quaternary barrier InAlGaN/GaN HEMT

François Lecourt, Alain Agboton, Nico Ketteniss, Hannes Behmenburg, N. Defrance, Virginie Hoel, Holger Kalisch, Andrei Vescan, Michael Heuken, Jean-Claude de Jaeger

Depletion-mode high-electron mobility transistors (HEMTs) based on a quaternary barrier In 0.11 Al 0.72 Ga 0.17 N/GaN heterostructure on sapphire substrate are fabricated and characterized. This structure shows a very high Hall electron mobility of 2200 cm 2 /V·s, which is the highest value ever…

IEEE Electron Device Letters, 2013, 34, pp.978-980. ⟨10.1109/LED.2013.2266123⟩. ⟨hal-00872022⟩

• Communication dans un congrès

A multi-path multi-rate CMOS polar DPA for wideband multi-standard RF transmitters

A. Werquin, A. Frappe, A. Kaiser

IEEE Radio Frequency Integrated Circuits Symposium, IEEE RFIC 2013, 2013, Seattle, WA, United States. paper RTU2A-4, 327-330, ⟨10.1109/RFIC.2013.6569595⟩. ⟨hal-00877745⟩

• Article dans une revue

Blind digital modulation detector for MIMO systems over high-speed railway channels

Sofiane Kharbech, Iyad Dayoub, E. Simon, Marie Zwingelstein

Lecture Notes in Computer Science, 2013, 7865, pp.232-241. ⟨10.1007/978-3-642-37974-1_19⟩. ⟨hal-00877703⟩

• Article dans une revue

Fast slot characterization using laser ultrasonics and mode conversion

F. Faëse, Frédéric Jenot, Mohammadi Ouaftouh, Marc Duquennoy, Mohamed Ourak

Measurement Science and Technology, 2013, 24, 095602, 7 p. ⟨10.1088/0957-0233/24/9/095602⟩. ⟨hal-00877664⟩

• Communication dans un congrès

Interferometric technique for scanning near-field microwave microscopy applications

H. Bakli, Kamel Haddadi, T. Lasri

IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2013, 2013, Minneapolis, MN, United States. pp.1694-1698, ⟨10.1109/I2MTC.2013.6555703⟩. ⟨hal-00877837⟩

• Article dans une revue

Manifestation of charged and strained graphene layers in the Raman response of graphite intercalation compounds

J.C. Chacon-Torres, L. Wirtz, T. Pichler

ACS Nano, 2013, 7, pp.9249-9259. ⟨10.1021/nn403885k⟩. ⟨hal-00878430⟩

• Communication dans un congrès

A modal formulation for the propagation of guided waves in straight and curved pipes and the scattering at their junction

M. El Bakkali, A. Lhémery, V. Baronian, Sébastien Grondel

12th Anglo-French Physical Acoustics Conference, AFPAC 2013, 2013, Fréjus, France. ⟨hal-00878892⟩

• Article dans une revue

Multiple exciton generation and ultrafast exciton dynamics in HgTe colloidal quantum dots

Ali Al-Otaify, Stephen V. Kershaw, Shuchi Gupta, Andrey L. Rogach, Guy Allan, Christophe Delerue, David J. Binks

The investigation of sub-nanosecond exciton dynamics in HgTe colloidal quantum dots using ultrafast transient absorption spectroscopy is reported. The transmittance change spectrum acquired immediately after pumping is dominated by a bleach blue-shifted by ∼200–300 nm from the photoluminescent…

Physical Chemistry Chemical Physics, 2013, 15, pp.16864-16873. ⟨10.1039/C3CP52574K⟩. ⟨hal-00871970⟩

• Article dans une revue

Dispersion engineering for multifunctional photonic crystal based nanophotonic devices at infrared wavelengths

M. Hofman, G. Scherrer, M. Kadic, X. Mélique, W. Smigaj, B. Cluzel, Sebastien Guenneau, D. Lippens, F. de Fornel, B. Gralak, O. Vanbésien

TIn this paper, we report the design, the fabrication and the near field optical microscopy of Negative Index Material (NIM) and GRadient INdex (GRIN) photonic crystal based flat lenses. They were fabricated on the basis of an InPbased photonic crystal technological platform including hole and…

Journal of Nanomedicine & Nanotechnology, 2013, 4, 1000185, 6 p. ⟨10.4172/2157-7439.1000185⟩. ⟨hal-00939049⟩