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Article dans une revue

Universality of the optical absorptance quantization in two-dimensional group-IV, III-V, II-VI and IV-VI semiconductors

Michel Lannoo, P Tim Prins, Zeger Hens, Daniel Vanmaekelbergh, Christophe Delerue

The optical absorptance of a single graphene layer over a wide range of wavelengths is known to be remarkably constant at the universal value πα where α is the fine structure constant. Using atomistic tight-binding calculations, we show that the absorptance spectra of nanometer-thin layers (quantum...

Physical Review B, 2022, 105, pp.035421. ⟨10.1103/PhysRevB.105.035421⟩. ⟨hal-03536349⟩

Article dans une revue

Broadband super-resolution Terahertz Time domain spectroscopy applied to Gas analysis

Sophie Eliet, Arnaud Cuisset, Francis Hindle, Jean-Francois Lampin, Romain Peretti

Commercially available Terahertz (THz) Time domain spectroscopy (THz-TDS) apparatus are used in multiple application fields from material science to biology, and even in industry to measure the thickness of a paint layers. Its broad spectral coverage is of interest for air quality monitoring and...

IEEE Transactions on Terahertz Science and Technology, 2022, 12 (1), pp.75-80. ⟨10.1109/TTHZ.2021.3120029⟩. ⟨hal-03143451v3⟩

Thèse

Thermal interface : High thermal conductivity phase change materials for thermal management in high power electronic devices, Interface Thermique : Matériaux à changement de phase à haute conductivité thermique pour le management thermique des composants électroniques de puissance

Romain Hubert

Phase Change Material (P C M) have been widely used for thermal energy storage due to their highlatent heat of fusion for thermal management applications. However, P C M suffer from their verylow thermal conductivity which limits heat spreading around the heat source. Without properthermal..., Les matériaux à changement de phase (P C M) sont largement utilisés du fait de leur forte chaleur latente de fusion pour des applications de management thermique. Malgré cela, les P C M pâtissent de leur faible conductivité thermique qui limite la propagation de la chaleur autour de la source.Sans...

Electronics. Centrale Lille Institut, 2022. English. ⟨NNT : 2022CLIL0001⟩. ⟨tel-04002579⟩

Article dans une revue

A perspective on elastic metastructures for energy harvesting

Zhihui Wen, Wan Wang, Abdelkrim Khelif, Bahram Djafari-Rouhani, Yabin Jin

Rapid advances have been made in the properties of metastructures, including phononic crystals, metamaterials, and metasurfaces, with respect to their robustness, high power density, and broadband behavior. This presents unique advantages for energy harvesting devices to meet the demands for...

Applied Physics Letters, 2022, 120 (2), pp.020501. ⟨10.1063/5.0078740⟩. ⟨hal-03596148⟩

Article dans une revue

Strong and weak polarization-dependent interactions in connected and disconnected plasmonic nanostructures

Damien Eschimèse, François Vaurette, Céline Ha, Steve Arscott, Thierry Mélin, Gaëtan Lévêque

We explore numerically and experimentally the formation of hybridized modes between a bright mode displayed by a gold nanodisc and either dark or bright modes of a nanorod – both elements being either separated by a nanometer-size gap (disconnected system) or relied on a metal junction (connected...

Nanoscale Advances, 2022, 4, pp.1173-1181. ⟨10.1039/D1NA00620G⟩. ⟨hal-03561511⟩

Article dans une revue

Stochastic Geometry-based Analysis of the Impact of Underlying Uncorrelated IoT Networks on LoRa Coverage

Romain Chevillon, Guillaume Andrieux, Laurent Clavier, Jean-François Diouris

IoT networks are more and more present nowadays. Some IoT protocols share the samebandwidth leading to interference on neighboring networks and decrease of overall coverage. To contributeto this problem, an analytical study of the coverage of a LoRa network with underlying uncoordinatedIoT networks...

IEEE Access, 2022, 10, pp.8790-8803. ⟨10.1109/ACCESS.2022.3141540⟩. ⟨hal-03520374⟩

Article dans une revue

Embroidered Spoof Surface Plasmon Polariton Transmission Line for Wireless Body Sensor Network

Ali Ghaddar, Baptiste Garnier, François Rault, Eric Lheurette, Ludovic Burgnies

A wearable Spoof Surface Plasmon Polariton Transmission Line (SSPP TL) operating at 2.45 GHz designed for embroidery production and on-body communication is proposed. The SSPP TL supports both even and odd modes launched by near field coupling with a dipole antenna perpendicular and parallel to the...

IET Microwaves Antennas and Propagation, 2022, 16 (4), pp.187-193. ⟨10.1049/mia2.12224⟩. ⟨hal-03592149⟩

Article dans une revue

Non-Hermitian skin effect in a phononic beam based on piezoelectric feedback control

Yabin Jin, Wenxin Zhong, Runcheng Cai, Xiaoying Zhuang, Yan Pennec, Bahram Djafari-Rouhani

Non-Hermitian systems have gained a great deal of interest in various wave problems due their ability of exhibiting unprecedented phenomena such as invisibility, cloaking, enhanced sensing, or the skin effect. The latter manifests itself by the localization of all bulk modes in a specific frequency...

Applied Physics Letters, 2022, 121 (2), pp.022202. ⟨10.1063/5.0097530⟩. ⟨hal-03742127⟩

Article dans une revue

CRC-Based Correction of Multiple Errors Using an Optimized Lookup Table

Vivien Boussard, Stephane Coulombe, François-Xavier Coudoux, Patrick Corlay

In this paper, we propose a new approach to perform multiple error correction in wireless communications over error-prone networks. It is based on the cyclic redundancy check syndrome, using an optimized lookup table that avoids performing arithmetic operations. This method is able to achieve the...

IEEE Access, 2022, 10, pp.23931-23947. ⟨10.1109/ACCESS.2022.3155457⟩. ⟨hal-03664661⟩

Article dans une revue

Monolayer molybdenum disulfide switches for 6G communication systems

Myungsoo Kim, Guillaume Ducournau, Simon Skrzypczak, Sung Jin Yang, Pascal Szriftgiser, Nicolas Wainstein, Keren Stern, Henri Happy, Eilam Yalon, Emiliano Pallecchi, Deji Akinwande

Atomically thin two-dimensional materials—including transitional metal dichalcogenides and hexagonal boron nitride—can exhibit non-volatile resistive switching. This switching behaviour could be used to create analogue switches for use in high-frequency communication, but has so far been limited to...

Nature Electronics, 2022, 5, pp.367-373. ⟨10.1038/s41928-022-00766-2⟩. ⟨hal-03689339⟩