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Communication dans un congrès

Continuous-wave lines up to 5.5 THz from the ammonia laser pumped by a quantum cascade laser

Jean-Francois Lampin, M.-H. Mammez, Z. Buchanan, M. Micica, O. Pirali, M.-A. Martin-Drumel, Sophie Eliet, S Barbieri, Francis Hindle, P. Roy, Gaël Mouret

We have recently demonstrated a continuous wave molecular laser emission based on ammonia optically pumped by a quantum cascade laser. We report here new results obtained with an optimized laser prototype pumped by a tunable external cavity quantum cascade laser. New laser lines with high output...

2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Nov 2020, Buffalo, NY, United States. pp.1-1, ⟨10.1109/IRMMW-THz46771.2020.9370956⟩. ⟨hal-03191459⟩

Article dans une revue

Scaling law, confined and surface modes in photonic fibonacci stub structures: theory and experiment

Hassan Aynaou, Abdelkader Mouadili, Noama Ouchani, El Houssaine El Boudouti, Abdellatif Akjouj, Bahram Djafari-Rouhani

We investigate both theoretically and experimentally the properties of electromagnetic waves propagation and localization in periodic and quasi-periodic stub structures of Fibonacci type. Each block constituting the Fibonacci sequence (FS) is composed of an horizontal segment and a vertical stub....

Applied Sciences, 2020, 10 (21), pp.7767. ⟨10.3390/app10217767⟩. ⟨hal-03321542⟩

Communication dans un congrès

Serial interference cancellation for improving uplink in LoRa-like networks

Angesom Ataklity Tesfay, Eric Pierre Simon, Guillaume Ferré, Laurent Clavier

In this paper, we present a new receiver design, which significantly improves performance in the Internet of Things networks such as LoRa, i.e., having a chirp spread spectrum modulation. The proposed receiver is able to demodulate multiple users simultaneously transmitted over the same frequency...

31st Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE PIMRC), Aug 2020, London, United Kingdom. 6 p. ⟨hal-03270084⟩

Communication dans un congrès

Characterization of 1-3 Piezocomposite Using Lamb Waves Propagation

Rémi Rouffaud, Anne-Christine Hladky, Dominique Certon, Antoine Balé, Franck Levassort

Due to their enhanced electromechanical properties with respect to conventional piezoelectric ceramics, 1-3 piezocomposite (1-3PC) materials are predominant in high performance ultrasonic array. Their complete effective electroelastic modulus (EEM) has a significant importance for numerical...

Forum Acusticum, Dec 2020, Lyon, France. pp.1873-1873, ⟨10.48465/fa.2020.0745⟩. ⟨hal-03240301⟩

Article dans une revue

A superheterodyne 300 GHz wireless link for ultra-fast terahertz communication systems

Iulia Dan, Guillaume Ducournau, Shintaro Hisatake, Pascal Szriftgiser, Ralf-Peter Braun, Ingmar Kallfass

A superheterodyne transmission scheme is adopted and analyzed in a 300 GHz wireless point-to-point link. This was realized using two different intermediate frequency (IF) systems. The first uses fast digital synthesis which provides an IF signal centered around a carrier frequency of 10 GHz. The...

International Journal of Microwave and Wireless Technologies, 2020, 12 (7), pp.578-587. ⟨10.1017/S1759078720000495⟩. ⟨hal-03321525⟩

Article dans une revue

Tunable photo-responsive elastic metamaterials

Antonio S. Gliozzi, M. Miniaci, Annalisa Chiappone, Andrea Bergamini, Benjamin Morin, Emiliano Descrovi

The metamaterial paradigm has allowed an unprecedented space-time control of various physical fields, including elastic and acoustic waves. Despite the wide variety of metamaterial configurations proposed so far, most of the existing solutions display a frequency response that cannot be tuned, once...

Nature Communications, 2020, 11, pp.2576. ⟨10.1038/s41467-020-16272-y⟩. ⟨hal-03140636⟩

Article dans une revue

Long-range electron transport in Prussian blue analog nanocrystals

Roméo Bonnet, Stéphane Lenfant, Sandra Mazérat, Talal Mallah, Dominique Vuillaume

We report electron transport measurements through nano-scale devices consisting of 1 to 3 Prussian blue analog (PBA) nanoparticles connected between two electrodes. We compare two types of cubic nanoparticles, CsCoIIIFeII (15 nm) and CsNiII...

Nanoscale, 2020, 12 (39), pp.20374-20385. ⟨10.1039/d0nr06971j⟩. ⟨hal-03010948⟩

Article dans une revue

Detection and evaluation of macro-cracks and micro-cracking by using automated surface wave non-contact scanners

Charles Ciccarone, Bogdan Piwakowski, Frédéric Skoczylas, Radoslaw Drelich, Jean-Marie Henault

The goal of the presented work is the detection and evaluation of cracks, in the VeRCoRs mock-up which constitutes the double-wall containment building of a Nuclear Power Plant in scale 1/3. The experiments are conducted in situ, on the inner wall of the VeRCoRs mock-up. The detection is performed...

Academic Journal of Civil Engineering, 2020, 38 (2), pp.72-75. ⟨10.26168/ajce.38.2.17⟩. ⟨hal-03594376⟩

Communication dans un congrès

Compact multichannel spectroscopic label-free biosensor platform for plant diseases point-of-care testing (POCT)

Jurij Hastanin, Cedric Lenaerts, Patrick Gailly, Frédéric Rabecki, Aline Roobroeck, Sylvain Desprez, Damien Bernier, Fabian Dortu, Camille Dekuijper, Deborah Lanterbecq, Karine Lecointe, Boualem Sendid, Mohamed Bouazaoui, Sophie Maricot, Mohamed-Taieb Bakouche, Sivaramakrishnan Ganesan, Jean-Pierre Vilcot, Karl Fleury-Frenette

The POCT technology involving low cost Lab-On-Chip label-free biosensing opens up an opportunity to drastically reduce the total cost of plant health and disease monitoring tools. The main requirement for a POCT tool is that it should involve relatively inexpensive equipment ensuring a sufficiently...

SPIE Photonics Europe, Conference 11361 - Biophotonics: Biophotonics in Point-of-Care, Apr 2020, Online Only, France. 113610P, 12 p., ⟨10.1117/12.2553216⟩. ⟨hal-02951651⟩

Article dans une revue

Experimental observation and modeling of the impact of traps on static and analog/HF performance of graphene transistors

Anibal Pacheco-Sanchez, Nikolaos Mavredakis, Pedro C. Feijoo, Wei Wei, Emiliano Pallecchi, Henri Happy, David Jimenez

The trap-induced hysteresis on the performance of a graphene field-effect transistor is experimentally diminished here by applying consecutive gate-to-source voltage pulses of opposing polarity. This measurement scheme is a practical and suitable approach to obtain reproducible device...

IEEE Transactions on Electron Devices, 2020, 67 (12), pp.5790-5796. ⟨10.1109/TED.2020.3029542⟩. ⟨hal-03321544⟩