Publicaciones

• Communication dans un congrès

Spectral Frequency Response of Hypersonic Phonons in a Non-Trivial Topological Waveguide

O.R. Ranjbar-Naeini, O. Florez, M.D. Koijam, B. Djafari Rouhani, Y. Pennec, T. Makkonen, O.M.E. Ylivaara, Sara Pourjamal, J. Ahopelto, C.M Sotomayor Torres

The spectral frequency response of a hypersonic phononic wave propagating along a non-trivial topological waveguide is obtained by laser Doppler vibrometry. The guided mode at 2.115 GHz is shown to propagate with minimal loss.

15th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META25, Jul 2025, Torremolinos, Spain. ⟨hal-05307572⟩

• Communication dans un congrès

Topological modes in phononic waveguide interfaces

Koijam Monika Devi, Clivia M Sotomayor‐torres, Yan Pennec, Bahram Djafari-Rouhani

We report phononic waveguide interfaces capable of supporting topological edge modes. We investigate the topological properties of the edge modes in different waveguide interfaces, revealing robust propagation with negligible backscattering. Our results provide valuable insights for the design of...

15th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META25, Jul 2025, Torremolinos, Spain. ⟨hal-05307846⟩

• Communication dans un congrès

[Invited] Bio-inspired hierarchical phononic crystals and metamaterials

Marco Miniaci

Marco Miniaci is a permanent researcher at the French National Scientific Research Centre (CNRS) appointed at the Institute of Electronics, Microelectronics and Nanotechnology (IEMN) of Villeneuve D’Ascq, in France. His research interests cover theoretical, numerical, and experimental aspects of...

15th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META25, META 2025, Jul 2025, Torremolinos, Spain. ⟨hal-05241240⟩

• Communication dans un congrès

Design of underwater noise reduction ultra-thin metabarriers

V.F. Dal Poggetto, M. Miniaci

in this work, we propose a metabarrier with a tailored elastic anisotropy for efficient underwater noise reduction. The constitutive unit cell of the metabarrier is optimized to enhance wave mode coupling to effectively operate in the sub-wavelength regime and also exhibit high sound transmission...

15th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META25, Jul 2025, Torremolinos, Spain. ⟨hal-05308523⟩

• Communication dans un congrès

[Invited] Topological Phase Transitions And Edge States In Ssh-type Elastic Systems With Periodic And Disordered Non-hermitian Modulations

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

Based on a generalized Su-Schrieffer-Heeger model, we design a non-Hermitian periodic or disordered elastic platform with feedback control where we theoretically study the topological phase diagrams and edge states. Considering both one and two-dimensional structures, we demonstrate in theory and...

15th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2025, Jul 2025, Torremolinos, Spain. ⟨hal-05241255⟩

• Communication dans un congrès

Luneburg lens for surface water waves

S.M. Kuznetsova, V.F. Dal Poggetto, M. Mazzotti, M. Onorato, V. Pagneux, M. Miniaci

Focusing of surface water waves is investigated using an analog of a Luneburg lens constructed by submerged pillars. Efficient focusing is observed on a wide range of frequencies. The results may find application in the ocean-human interaction, such as coastal protection.

15th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META25, Jul 2025, Torremolinos, Spain. ⟨hal-05308500⟩

• Communication dans un congrès

Metamaterial-based Dielectric Elastomers for Enhanced Energy Harvesting

A. Dutta, Y. Pennec, G. Lévêque, B Djafari-Rouhani, M Miniaci

This work investigates the integration of mechanical metamaterials into dielectric elastomer generators (DEGs) to enhance energy harvesting performance. By introducing auxetic and multi-stable geometries in both two-dimensional (2D) and three-dimensional (3D) DEGs, we demonstrate enhanced...

15th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META25, Jul 2025, Torremolinos, Spain. ⟨hal-05308556⟩

• Thèse

Nanostructures périodiques induisant des états d'interface Tamm plasmoniques pour des applications en détection optique, Periodic Nanostructures Inducing Plasmonic Tamm Interface States for Optical Sensing Applications

Oumaima Haidar

Les modes de Tamm plasmoniques (TP), états électromagnétiques localisés à l'inter- face entre un réseau de Bragg unidimensionnel et une couche métallique, se distinguent par un facteur de qualité élevé, nettement supérieur à celui des plasmons de surface. Cette caractéristique en fait des..., Tamm plasmon modes (TP), which are electromagnetic states localized at the in- terface between a one-dimensional Bragg reflector and a metal layer, exhibit a high quality factor, significantly exceeding that of conventional surface plasmons. This pro- perty makes them attractive candidates for...

Optique / photonique. Université de Lille; Université Moulay Ismaïl (Meknès, Maroc), 2025. Français. ⟨NNT : 2025ULILN011⟩. ⟨tel-05375033⟩

• Article dans une revue

Tracking the global pulse: the first public twitter dataset from FIFA world cup

Kheir Eddine Daouadi, Yaakoub Boualleg, Oussama Guehairia, Abdelmalik Taleb-Ahmed

The success of the recent World Cup tournament has captured unprecedented global attention, leading to a substantial increase in online discourse that reflects the diverse sentiments and opinions of fans across the globe. Understanding this online conversation is essential, particularly in the...

Journal of Computational Social Science, 2025, 8 (3), pp.79. ⟨10.1007/s42001-025-00410-x⟩. ⟨hal-05215070⟩

• N°spécial de revue/special issue

The notes to the Axioms or Laws of Motion in the Geneva Edition of Newton’s Principia

Paolo Bussotti, Raffaele Pisano

Foundations of Science, 2025, IDTC Special Issue. Newton's Principia & Newtonian Mechanics: Foundations, Heritage, Methodology, Editions, Popularization and Nature of Science Teaching, ⟨10.1007/s10699-025-09979-y⟩. ⟨hal-04983574⟩