Publications

• COMM

Device for broadband THz spectroscopy of 1-nL-volume samples

Sergey Mitryukovskiy, Melanie Lavancier, Flavie Braud, Theo Hannotte, Emmanuel Dubois, Jean-Francois Lampin, Romain Peretti

We report on our recent progress in the development of a device for light-matter interaction enhancement in the full terahertz range for precise spectroscopy of minor-volume samples. The efficient confinement of a broadband terahertz pulse to a few-nL-volume was achieved, opening new perspectives…

2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Sep 2019, Paris, France. paper Tu-PM2-3-6, 2 p., ⟨10.1109/IRMMW-THz.2019.8874026⟩. ⟨hal-02886495⟩

• ART

Conductivity of Manganite Films under the Action of Tension Caused by the Deformation of Substrate

G. Ovsyannikov, T. Shaikhulov, V. Shakhunov, A. Klimov, V. Preobrazhenskii, Nicolas Tiercelin, Philippe Pernod

The electron transport properties of strained thin La 0.7 Ba 0.3 MnO 3 (LBMO) epitaxial films are studied. Films 40-100 nm in thickness were prepared by laser ablation at a temperature T = 700-800°C in pure oxygen atmosphere of 0.3-1 mBar. Ferroelectric crystal substrates (011)0.79PbMg 1/3 Nb 2/3 O…

Physics of the Solid State, 2019, 61 (9), pp.1665-1669. ⟨10.1134/S1063783419090208⟩. ⟨hal-02318290⟩

• COMM

Combined UTC-PD integrated on-chip THz near field microscopy with coupled planar Goubau lines

Tahsin Akalin, Abdallah Chahadih, Abbas Ghaddar, Ibrahim Tirer

In most of the cases for terahertz near field microscopy, a free space propagating electromagnetic wave interacts with a small tip placed above the sample. In our original approach, we use a guided way to bring the terahertz wave and to improve the interaction efficiency with the sample. The idea…

2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Sep 2019, Paris, France. pp.1-2, ⟨10.1109/IRMMW-THz.2019.8873931⟩. ⟨hal-03680774⟩

• COMM

THz links using tube amplifiers and steerable beams for indoor applications

Cybelle Belem-Goncalves, Guillaume Ducournau, Andre Sarker, Henry Giddens, C. Biurrun, C. Del-Rio Boccio, Cyril Luxey, Yang Hao, Rupa Basu, Claudio Paoloni

We present in this paper an ongoing project will is targeting the combination of several technologies to achieve high-data-rate and long-range links using a mW level source with fast modulation, waveguide coupled to drive a traveling-wave tube amplifier towards a modulated in the 210-250 GHz range…

2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Sep 2019, Paris, France. pp.1-2, ⟨10.1109/IRMMW-THz.2019.8874114⟩. ⟨hal-03555377⟩

• ART

Improvement in carrier dynamics in In_xGa_1-xN/GaN multi-quantum well for solar cell applications

Abdelkader Aissat, Jean-Pierre Vilcot

In this work, we have studied and simulated nanostructures to improve the solar cell efficiency. The idea of this study is to insert multi-quantum wells in the structure of a solar cell (MQWSC). The electric field, recombination, and the photogeneration rates of charge carriers in QWSC influence…

• ART

Magnetic Interactions on Oxide Ferromagnet/Ferromagnetic Intermetallide Interface

G. Ovsyannikov, V. Demidov, T. Shaikhulov, A. Klimov, Nicolas Tiercelin, Philippe Pernod, S. Nikitov

The magnetic properties of heterostructures consisting of two films are studied. The upper layer involves rare-earth intermetallic nanostructured superlattices consisting of exchange-coupled layers (TbCo 2 /FeCo) n (TCFC), and the lower layer includes either epitaxial manganite La 0.7 Sr 0.3 MnO 3…

Physics of the Solid State, 2019, 61 (9), pp.1652-1657. ⟨10.1134/S1063783419090191⟩. ⟨hal-02318292⟩

• ART

Metallized SU-8 thin film patterns on stretchable PDMS

Tiffany Baëtens, Emiliano Pallecchi, V. Thomy, S. Arscott

Journal of Micromechanics and Microengineering, 2019, 29 (9), pp.095009. ⟨10.1088/1361-6439/ab307f⟩. ⟨hal-02345306⟩

• ART

Chalcogenide glasses as a playground for the application of first-principles molecular dynamics to disordered materials

Guido Ori, Assil Bouzid, Évelyne Martin, Carlo Massobrio, Sébastien Le Roux, Mauro Boero

An overview of the major first-principles methods used to simulate condensed phases is presented, with special emphasis on chalcogenide glasses. The scope of this review article is to offer a survey of fundamental algorithms and techniques, accompanied by a few recent examples particularly…

Solid State Sciences, 2019, 95, pp.105925. ⟨10.1016/j.solidstatesciences.2019.06.014⟩. ⟨hal-02349474⟩

• POSTER

Development of high-speed, patch-antenna intersubband photodetectors at 10.3um

Q. Lin, M Hakl, S Pirotta, R. Colombelli, W. Wan, H Li, J. Cao, Jean-Francois Lampin, Emilien Peytavit, S Barbieri

We present our work towards the development of high-speed, GaAs-AlGaAs multi-quantum wells photodetectors at 10.3m, based on two-dimensional arrays of patch-antenna resonators. First, the results of FDTD simulations will be presented that allowed to optimize the patch array geometry and fabricate…

44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019, Sep 2019, Paris, France. ⟨hal-02323396⟩

• COMM

An Integrated Photoacoustic Terahertz Gas Sensor

Mattias Verstuyft, Elias Akiki, Benjamin Walter, Marc Faucher, Mathias Vanwolleghem, Bart Kuyken

An on-chip gas detector that transduces absorbed terahertz light to a mechanical motion using photoacoustics is proposed. The silicon chip confines light in an optical cavity, wherein an acousto-mechanical cavity is housed. The concentration of a trace gas can be determined from the amplitude of a…

2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Sep 2019, Paris, France. pp.1-2, ⟨10.1109/IRMMW-THz.2019.8873764⟩. ⟨hal-03100252⟩