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Affichage de 681 à 690 sur 16164

Article dans une revue

Selective area epitaxy of in-plane HgTe nanostructures on CdTe(001) substrate

N Chaize, X Baudry, P-H Jouneau, E Gautier, J-L Rouvière, Y Deblock, J Xu, M Berthe, C Barbot, B Grandidier, L Desplanque, H Sellier, P Ballet

Semiconductor nanowires (NWs) are believed to play a crucial role for future applications in electronics, spintronics and quantum technologies. A potential candidate is HgTe but its sensitivity to nanofabrication processes restrain its development. A way to circumvent this obstacle is the selective…

Nanotechnology, 2024, 35 (50), pp.505602. ⟨10.1088/1361-6528/ad7ff4⟩. ⟨hal-04746498⟩

Communication dans un congrès

Biomimetic anti-icing surfaces applied to second generation refrigerating systems

Bas Florian, Maude Jimenez, Yannick Coffinier, Vincent Thomy, Anthony Delahaye, L. Fournaison, Pascal Clain

One action to protect environment in this global climate change crisis is to lower the use of CFCs (ChloroFluoroCarbons) in primary refrigerating systems. To reduce the use of such substances, second generation refrigerating systems using ecological high energy density refrigerant (ice slurry) have…

Biomimétisme, Bio-inspiration et Santé, GDR BIOMIM - 2088, Oct 2024, Saint- Pierre d'Oléron, France. ⟨hal-04894886⟩

Communication dans un congrès

Molecular spectroscopy with a THz frequency comb

Alexandra Khabbaz, Jean-Francois Lampin, Francis Hindle, Gaël Mouret

Terahertz spectroscopy leveraging frequency combs (FC) derived from femtosecond lasers enables high-resolution molecular analysis. Through precise calibration and innovative instrumentation, our setup demonstrates the capability to achieve detailed spectral resolution, showcasing the potential for…

49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Sep 2024, Perth, Australia. pp.1-2, ⟨10.1109/IRMMW-THz60956.2024.10697872⟩. ⟨hal-04748591⟩

Communication dans un congrès

Free Induction Decay signals stimulated and detected by photomixing

Francis Hindle, F. Parnet, F. Bondu, Guillaume Ducournau, Jean-Francois Lampin, Gaël Mouret, G. Loas, Emilien Peytavit

This abstract presents a coherent THz spectroscopy experiment consisting in recording the free induction decay of a collection of carbonyde sulfide (OCS) molecules when polarized coherently by a ~0.29 THz incident pulse resonant with the J=24- >23 OCS rotational line. This was accomplished…

49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Sep 2024, Perth, Australia. pp.1-2, ⟨10.1109/IRMMW-THz60956.2024.10697581⟩. ⟨hal-04748565⟩

Article dans une revue

Cooperative dynamics of PARP-1 zinc-finger domains in the detection of DNA single-strand breaks

Parvathy A Sarma, Corinne Abbadie, Fabrizio Cleri

The DNA single-strand break (SSB) repair pathway is initiated by the multifunctional enzyme PARP-1, which recognizes the broken DNA ends by its two zinc-finger domains, Zn1 and Zn2. Despite a number of experiments performed with different DNA configurations and reduced fragments of PARP-1, many…

Scientific Reports, 2024, 14 (1), pp.23257. ⟨10.1038/s41598-024-73707-y⟩. ⟨hal-04725325⟩

Communication dans un congrès

Diatom frustule-inspired elastic metamaterials

Chiara Gazzola, Vinicius Fonseca Dal Poggetto, Xin Zhou, Marco Miniaci

Although a universally accepted definition of elastic metamaterials does not exist yet, the latter are often associated to man-made or artificially engineered media possessing properties typically not available in Nature. Pioneering studies have recently demonstrated that complex structural…

53rd International Congress and Exposition on Noise Control Engineering, INTER-NOISE24, Aug 2024, Nantes, France. pp.9327-9332, ⟨10.3397/IN_2024_4232⟩. ⟨hal-04856658⟩

Communication dans un congrès

Design and analysis of a periodic metamaterial barrier for mitigating urban-induced vibrations

Slimane Ouakka, Bart van Damme, Yan Pennec, Georges Kouroussis

Urban areas are increasingly subjected to vibrations from various sources within the urban environment. Therefore, there is an urgent necessity to find measures that can minimize their negative effects. This pa-per investigates the concept of metamaterial and analyzes the impact of its inclusion on…

53rd International Congress and Exposition on Noise Control Engineering, Internoise 2024, Aug 2024, Nantes, France. pp.9512-9518, ⟨10.3397/IN_2024_4259⟩. ⟨hal-05314274⟩

Communication dans un congrès

Characterisation of metamaterials for underwater acoustics using the 5-point method

Clément Larcade, Charles Croënne, Monique Pouille, Laetitia Roux, Anne-Christine Hladky

The characterization of metamaterials by measurement is essential to reveal the true efficiency of a material's reflection and transmission in water. The current 3-point method developed by L. Roux et al, J. Acoust. Soc. Am. 147, 2 (2020) 1104-1112 provides important advantages, such as…

53rd International Congress and Exposition on Noise Control Engineering, INTER-NOISE24, Aug 2024, Nantes, France. pp.2975-2983, ⟨10.3397/IN_2024_3258⟩. ⟨hal-04856684⟩

Communication dans un congrès

Anthropogenic noise and impact on marine species : Acoustic metamaterials as a reduction solution

Juliette Kessler, Charles Croënne, Monique Pouille, Céline Drouet, Anne-Christine Hladky-Hennion

Anthropogenic underwater noise generated by offshore maritime activities poses a significant threat to nearby ecosystems due to elevated sound levels. Efforts have to be undertaken on noise reduction solutions, depending both on the offshore activities and on the marine species. In this context,…

53rd International Congress and Exposition on Noise Control Engineering, INTER-NOISE24, Aug 2024, Nantes, France. pp.2938-2945 (8), ⟨10.3397/IN_2024_3253⟩. ⟨hal-04856674⟩

Communication dans un congrès

Topologically protected bound modes in non-neighboring hexagonal lattices

Vinicius Dal Poggetto, Raj Pal, Nicola Pugno, Marco Miniaci

In the last decade, the study of wave localization and guiding has gained a renewed interest thanks to the introduction of the concept of topological protection. Originally developed in the field of quantum mechanics, topological protection has successively inspired the search for its analogue in…

53rd International Congress & Exposition on Noise Control Engineering, Aug 2024, Nantes, France. pp.9609-9619, ⟨10.3397/IN_2024_4272⟩. ⟨hal-04738352⟩