Publications

• Communication dans un congrès

MIMO in tunnel: impact of polarization and array orientation on the channel characteristics

Frédéric Challita, Pierre Laly, M. Lienard, Davy Gaillot, Pierre Degauque, Jose-Maria Molina-Garcia-Pardo, Wout Joseph

Polarimetric characteristics of the propagation channel in a straight tunnel and in a frequency band around 1.3 GHz, are deduced from measurements using a real-time MIMO channel sounder. Emphasis is on the cross-polarization discrimination factor and, for a MIMO configuration, on the correlation…

6th IEEE Radio and Antenna Days of the Indian Ocean, RADIO 2018, Oct 2018, Mauritius, Mauritius. pp.100-101, ⟨10.23919/RADIO.2018.8572376⟩. ⟨hal-03346247⟩

• Article dans une revue

Transmission gaps, trapped modes and Fano resonances in Aharonov-Bohm connected mesoscopic loops

T. Mrabti, Z. Labdouti, O. El Abouti, E. H. El Boudouti, F. Fethi, Bahram Djafari-Rouhani

A simple mesoscopic structure consisting of a double symmetric loops coupled by a segment of length do in the presence of an Aharonov-Bohm flux is designed to obtain transmission band gaps and Fano resonances. A general analytical expression for the transmission coefficient and the density of…

Physics Letters A, 2018, 382 (9), pp.613-620. ⟨10.1016/j.physleta.2018.01.003⟩. ⟨hal-03183501⟩

• Ouvrages

Phononics

L. Dobrzynski, El Houssaine El Boudouti, Abdellatif Akjouj, Yan Pennec, Housni Al-Wahsh, Gaëtan Lévêque, Bahram Djafari-Rouhani

Phononics: Interface Transmission Tutorial Book Series provides an investigation of modern systems that includes a discrete matrix description. Classical continuous systems relying on the use of differential equations are recalled, showing that they generally have a specific limit on their…

Elsevier, pp.1-381, 2018, Leonard Dobrzynski, 978-0-12-809948-3. ⟨10.1016/C2015-0-06475-9⟩. ⟨hal-03356302⟩

• Article dans une revue

Thermal conductivity of deca-nanometric patterned Si membranes by multiscale simulations

Hayat Zaoui, Pier Luca Palla, Stefano Giordano, Fabrizio Cleri, Maxime Verdier, David Lacroix, J.F. Robillard, Konstantinos Termentzidis, Évelyne Martin

The hollowing of silicon membranes to form a lattice of cylindrical holes, also called phononic crystal, has been used by several experimental groups willing to fabricate efficient thermoelectric modules. The idea is to reduce the thermal conductivity without impacting the electronic conductivity.…

International Journal of Heat and Mass Transfer, 2018, 126, pp.830-835. ⟨10.1016/j.ijheatmasstransfer.2018.06.004⟩. ⟨hal-01826181⟩

• Communication dans un congrès

Insights into water-rock interactions in meteorites from diffraction tomography

Agnes Elmaleh, P. Wright Jonathan, Benoit Baptiste, C. Tarantino Serena, Beatrice Doisneau, Erik Elkaim, David Troadec

31st European Crystallography Meeting, ECM31, Symposium MS13 - New insights on diffraction studies of minerals and related materials, Aug 2018, Oviedo, Spain. pp.MS13-E47, ⟨10.1107/S2053273318094482⟩. ⟨hal-02974820⟩

• Communication dans un congrès

Low-complexity feature extraction unit for “Wake-on-Feature” speech processing

Simon Lecoq, Jean Le Bellego, Angel Gonzalez, Benoit Larras, Antoine Frappé

In the context of energy-constrained automatic speech recognition, a modeling and simulation tool is presented to evaluate the hardware complexity of a feature extraction unit. The objective is to evaluate the minimal amount of features necessary for voice-activity detection, considering limited…

2018 25th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Dec 2018, Bordeaux, France. pp.677-680, ⟨10.1109/ICECS.2018.8617967⟩. ⟨hal-03377038⟩

• Article dans une revue

High-Pass Sub-mm Wave Filtering by Woven Textile Metamaterials

Ludovic Burgnies, Camille Huppe, Guillaume Ducournau, Cedric Cochrane, Francois Rault, Vladan Koncar, Eric Lheurette

Textile metamaterials produced by a weaving of metallic and dielectric yarns are considered for filtering operations in the sub-millimeter hand. A woven metamaterial was designed by parametric simulations aimed at producing a high-pass filter with a cutoff frequency at around 500 GHz above a high-…

IEEE Transactions on Terahertz Science and Technology, 2018, 8 (4), pp.427-433. ⟨10.1109/TTHZ.2018.2844096⟩. ⟨hal-03185118⟩

• Article dans une revue

Rayleigh Waves in Phononic Crystal Made of Multilayered Pillars: Confined Modes, Fano Resonances, and Acoustically Induced Transparency

M. Oudich, Bahram Djafari-Rouhani, B. Bonello, Yan Pennec, S. Hemaidia, F. Sarry, D. Beyssen

We present a design of phononic crystal based on pillars distributed on a substrate surface in which each pillar is constructed by a periodic stacking of PMMA and silicon layers. The pillar behaves like a one-dimensional phononic crystal which allows the creation of band gaps that prohibits wave…

Physical Review Applied, 2018, 9 (3), pp.034013. ⟨10.1103/PhysRevApplied.9.034013⟩. ⟨hal-01826538⟩

• Article dans une revue

The role of dispersion forces on the atomic structure of glassy chalcogenides: The case of GeSe4 and GeS4

Ziyad Chaker, Guido Ori, Christine Tugène, Sébastien Le Roux, Mauro Boero, Carlo Massobrio, Évelyne Martin, Assil Bouzid

Recent first-principles molecular dynamics simulations (FPMD) results on two chalcogenide glasses (glassy GeS4 and GeSe4) are revisited by accounting explicitly for van der Waals (vdW) dispersion forces. This effort is motivated by the observation that such contributions were found to be important…

Journal of Non-Crystalline Solids, 2018, 499, pp.167-172. ⟨10.1016/j.jnoncrysol.2018.07.012⟩. ⟨hal-02312769⟩

• Article dans une revue

Suppression of contact noise in a study on 1/ f noise as a function of film thickness in Al-doped ZnO

Abicha Achahour, Gérard Leroy, L.K.J. Vandamme, Boubakeur Ayachi, Benoît Duponchel, Nicolas Waldhoff, Karine Blary, Jean-Pierre Vilcot

Aluminum doped-zinc oxide (AZO) thin films were prepared on glass substrate by radio-frequency (RF) sputtering at room temperature. The sheet resistance, Rsh [Ω] the resistivity, ρ [Ω·cm] and the 1/f noise were studied as a function of thickness, t from 50 nm to 450 nm. The eddy current…

Thin Solid Films, 2018, 645, pp.70-76. ⟨10.1016/j.tsf.2017.10.035⟩. ⟨hal-02409513⟩