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Affichage de 2191 à 2200 sur 16549

Article dans une revue

Frequency stable and low phase noise THz synthesis for precision spectroscopy

Léo Djevahirdjian, Loïc Lechevallier, Marie-Aline Martin-Drumel, Olivier Pirali, Guillaume Ducournau, Rédha Kassi, Samir Kassi

We present a robust approach to generate a continuously tunable, low phase noise, Hz linewidth and mHz/s stability THz emission in the 0.1 THz to 1.4 THz range. This is achieved by photomixing two commercial telecom, distributed feedback lasers locked by optical-feedback onto a single highly stable...

Nature Communications, 2023, 14 (1), pp.7162. ⟨10.1038/s41467-023-42905-z⟩. ⟨hal-04291164⟩

Article dans une revue

Thermodynamics of a single mesoscopic phononic mode

Ilya Golokolenov, Arpit Ranadive, Luca Planat, Martina Esposito, Nicolas Roch, Xin Zhou, Andrew Fefferman, Eddy Collin

In recent decades, the laws of thermodynamics have been pushed down to smaller and smaller scales, within the field of stochastic thermodynamics and state-of-art experiments performed on mesoscopic systems. But these measurements concern mostly thermal properties of electrons and photons. Here we...

Physical Review Research, 2023, 5 (1), pp.013046. ⟨10.1103/PhysRevResearch.5.013046⟩. ⟨hal-03765514⟩

Article dans une revue

In-Depth Investigation of Manganese Dioxide as Pseudocapacitive Electrode in Lithium- and Sodium-Doped Ionic Liquids

Thibaud Guillemin, Camille Douard, Anthony Impellizzeri, Christopher Ewels, Bernard Humbert, Christophe Lethien, Scott Wilfred Donne, Jean Le Bideau, Thierry Brousse

We investigate the contribution of pseudocapacitance to the overall capacitance of MnO2 electrodes in pure and alkaline-doped ionic liquids via two spectroscopic methods: step potential electrochemical spectroscopy (SPECS) and in situ Raman spectroscopy. For both characterization methods, thin-film...

Journal of The Electrochemical Society, 2023, 170 (10), pp.100531. ⟨10.1149/1945-7111/ad0180⟩. ⟨hal-04239177⟩

Communication dans un congrès

Ultrafast Modulation of Polarization in Spintronic THz Emitters Enhanced by Field Induced Spin Reorientation Transition

Geoffrey Lezier, Pierre Koleják, Jean-Francois Lampin, Kamil Postava, Mathias Vanwolleghem, Nicolas Tiercelin

We demonstrate an efficient and simple modulation of the polarization in Spin-tronic Terahertz Emitters, by rapid switching of the magnetization using high-frequency magnetic field, enhanced by field induced Spin Reorientation Transition (SRT). The instability of the magnetic layer at the...

CLEO: Science and Innovations, 2023, San Jose, United States. pp.SF2I.4, ⟨10.1364/CLEO_SI.2023.SF2I.4⟩. ⟨hal-04308497⟩

Article dans une revue

Nanomechanical damping via electron-assisted relaxation of two-level systems

Olivier Maillet, Dylan Cattiaux, Xin Zhou, Rasul R. Gazizulin, Olivier Bourgeois, Andrew D. Fefferman, Eddy Collin

We report on measurements of dissipation and frequency noise at millikelvin temperatures of nanomechanical devices covered with aluminum. A clear excess damping is observed after switching the metallic layer from superconducting to the normal state with a magnetic field. Beyond the standard model...

Physical Review B, 2023, 107 (6), pp.064104. ⟨10.1103/PhysRevB.107.064104⟩. ⟨hal-03007076⟩

Communication dans un congrès

High Throughput Characterization Methods at the Wafer Scale for Sputtered Films Used in Micro-Supercapacitors and Li-Ion Micro-Batteries

Pascal Roussel, Aiman Jrondi, Khac Huy Dinh, Bukola Jolayemi, Clément Leviel, Maxime Hallot, Christophe Lethien

The emergence of new miniaturized and autonomous electronic technologies leads to a request of efficient microdevices for energy storage. The development of thin film Li-ion micro-batteries or micro-supercapacitors is an interesting way to power connected sensors, as their manufacturing method is...

MRS Spring Meeting 2023, Apr 2023, San Francisco, California, United States. ⟨hal-03969782⟩

Communication dans un congrès

Interlaboratory investigation of on-wafer S parameter measurements from 110 GHz to 1.1 THz

Xiaobang Shang, Nick Ridler, Uwe Arz, Gia Ngoc Phung, Isabelle Roch-Jeune, Guillaume Ducournau, Kamel Haddadi, Thomas Flisgen, Ralf Doerner, Djamel Allal, Divya Jayasankar, Jan Stake, Robin Schmidt, Gavin Fisher, Faisal Mubarak

This paper presents an interlaboratory comparison of on-wafer S-parameter measurements of coplanar waveguide (CPW) devices in the frequency range of 110 GHz to 1.1 THz. The comparison was conducted using bespoke calibration standards and verification devices fabricated from high resistivity Silicon...

53rd European Microwave Conference, EuMC 2023, Session EuMC31 - Calibration and deembedding, Sep 2023, Berlin, Germany. ⟨hal-04244234⟩

Article dans une revue

Capacity Improvement of 3D-OCDMA-PON Hybrid System Next Generation Using Weight Zero Cross Correlation Code

Abdelhamid Cherifi, Tarik Mohammed Chikouche, Abdullah Karar, Julien Moussa H. Barakat, Omar Arbouche, Iyad Dayoub

This paper proposes a novel code for optical code division multiple access (OCDMA) systems, called the three-dimensional (3D) spectral/temporal/spatial single weight zero cross-correlation (3D-SWZCC) code. The proposed code could potentially be used in the next generation of passive optical...

Applied Sciences, 2023, 13 (10), pp.5869. ⟨10.3390/app13105869⟩. ⟨hal-04125224⟩

Article dans une revue

Characterization of electro-optic coefficients r13 , r23 and r33 in single crystalline BaTiO3 thin films

Yu Cao, Nour Al Meselmene, El Hadj Dogheche, Ping Yang, Parikshit Moitra, Shi Qiang Li, Thirumalai Venkatesan, Aaron Danner

We report experimental characterization of DC electro-optic coefficients r 13 , r 23 and r 33 in thin film single crystalline BaTiO3 on DyScO3 . The epitaxial BaTiO3 thin film is sandwiched between a SrRuO3 bottom electrode and an indium tin oxide (ITO) top electrode. We characterize the DC electro...

Optical Materials Express, 2023, 13 (1), pp.152. ⟨10.1364/OME.474245⟩. ⟨hal-03907618⟩

Article dans une revue

[Review] Host miRNAs as biomarkers of SARS-CoV-2 infection: a critical review

Kato Pollet, Nathalie Garnier, Sabine Szunerits, Annemieke Madder, Didier Hober, Ilka Engelmann

MicroRNAs (miRNAs), small non-coding RNAs that regulate gene expression, have received increasing attention as potential biomarkers of different diseases, including viral infections. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and the disease it is causing, coronavirus...

Sensors & Diagnostics, 2023, 2, pp.12-35. ⟨10.1039/D2SD00140C⟩. ⟨hal-03857965⟩