Publications

• COMM

RF Performance of large germanium telluride switches for power application

Ismaël Charlet, Bruno Reig, Corentin Mercier, Julien Delprato, Vincent Puyal, Clémence Héllion, Marjolaine Allain, Stéphane Monfray, Alain Fleury, Frédéric Gianesello, Philippe Cathelin, Jean-François Robillard, Emmanuel Dubois, Jose Lugo-Alvarez

This paper reports the integration and characterization of germanium telluride (GeTe) phase-change material (PCM)-based RF switches in series configuration with a 89 μm wide PCM element to address sub-6G power handling requirements. Switching conditions using indirect heating, as well as small- and…

EuMIC 2023 - 18th European Microwave Integrated Circuits Conference, Sep 2023, Berlin, Germany. pp.177-180, ⟨10.23919/EuMIC58042.2023.10288974⟩. ⟨hal-04227456⟩

• COMM

Angular spectrum method for acoustic beam in anisotropic media and structures

Wei-Jiang Xu, Jinying Zhang, Xianmei Wu, Samuel Dupont

2023 International Congress on Ultrasonics, ICU, Sep 2023, Beijing, China. ⟨hal-04470200⟩

• COMM

[Invited] Pushing the breakdown voltage and temperature capabilities of GaN HEMTs by using UWBG Al-rich channel

F Medjdoub

The rapidly increasing power demand, downsizing of power electronics and material specific limitation of silicon has led to development of AlGaN/GaN heterostructures. Commercial GaN power devices are best available for radio frequency (RF) and high voltage switching applications. Emerging AlxGa1-xN…

European Materials Research Society Fall 2023 (EMRS-2023), Sep 2023, Warsaw, Poland. ⟨hal-04436468⟩

• COMM

59 Lines Measurement in a Single Experiment using Super-Resolution TDS

Noureddin Osseiran, Aditya Raj, Théo Hannotte, Sophie Eliet, Romain Peretti

Terahertz time domain spectroscopy (THz-TDS) has emerged as a versatile tool for investigating the physical properties of materials. However, its potential for gas-phase studies has remained largely unexplored, and it gained attention recently. We present here an extended application of the…

2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Sep 2023, Montreal, Canada. pp.1-2, ⟨10.1109/IRMMW-THz57677.2023.10299388⟩. ⟨hal-04277652⟩

• COMM

On-wafer RF high-power measurement with an LSMO load at 40 GHz

T. Quinten, Jean-Francois Lampin, Etienne Okada, V. Pierron, C. Gunther, Laurence Méchin, B. Walter, B. Guillet

We present a novel technique to measure RF power directly in the plane of a DUT using a CPW (CoPlanar Waveguide) test-pattern as an on-wafer power meter. Preliminary results show that we have been able to measure 24 dBm at 40 GHz.

2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Sep 2023, Montreal, Canada. pp.1-2, ⟨10.1109/IRMMW-THz57677.2023.10299045⟩. ⟨hal-04277896⟩

• COMM

Spintronic Terahertz Emitter on a Fiber Tip

Felix Paries, Nicolas Tiercelin, Geoffrey Lezier, Mathias Vanwolleghem, Felix Selz, Maria-Andromachi Syskaki, Fabian Kammerbauer, Gerhard Jakob, Martin Jourdan, Mathias Kläui, Zdenek Kaspar, Tobias Kampfrath, Tom Seifert, Georg Von Freymann, Daniel Molter

Spintronic terahertz emitters have attracted considerable interest within the last decade. They promise terahertz sources with unmatched broad frequency bandwidth which are easy to manufacture and operate, and therefore easy to scale at low cost. However, the experiments and proofs of concept rely…

2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Sep 2023, Montreal, Canada. pp.1-2, ⟨10.1109/IRMMW-THz57677.2023.10299018⟩. ⟨hal-04435176⟩

• COMM

Mid-infrared quantum well photodetectors with 100GHz 3dB-bandwidth at room temperature

Q. Lin, M. Hakl, Jean-Francois Lampin, W. Wan, J. Cao, H. Li, Emilien Peytavit, S Barbieri

Ultra-fast, GaAs-based multi-quantum well photodetectors operating in the 9.5-11.5um range are demonstrated, with a 3dB-cutoff bandwidth of 100GHz at room temperature. The multi quantum-well active region is sandwiched between a bottom metallic ground-plane and a top two-dimensional array of patch…

2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Sep 2023, Montreal, Canada. pp.1-2, ⟨10.1109/IRMMW-THz57677.2023.10299145⟩. ⟨hal-04277577⟩

• COMM

Adapting terahertz spintronic emitters towards maximum performance

Pierre Koleják, Geoffrey Lezier, Lukáš Halagačka, Baptiste Mathmann, Daniel Vala, Zuzana Gelnárová, Yannick Dusch, Jean-François Lampin, Nicolas Tiercelin, Kamil Postava, Mathias Vanwolleghem

The boom in terahertz technologies of the last few decades is now not limited to the use of electric charge, but also fully exploits spin. Revolutionary spintronic terahertz emitters (STEs) offer versatile usage under a wide range of visible and infrared excitation wavelengths, arbitrary reflection…

2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Sep 2023, Montreal, Canada. pp.1-2, ⟨10.1109/IRMMW-THz57677.2023.10299199⟩. ⟨hal-04277716⟩

• COMM

200 Gbit/s terahertz tunneling demultiplexer in 300 GHz band

Daniel Headland, Withawat. Withayachumnankul, Masayuki. Fujita, Tadao Nagatsuma, Pascal Szriftgiser, Guillaume Ducournau

We showcase here the experimental demonstration of demultiplexing terahertz channels with up to 200 Gbit/s aggregated data-rate, using 4 carrier frequencies. The demonstration is carried out in the 300 GHz band. Best error vector magnitude obtained values are in the range 6-9%, with 50 Gbit/s per…

2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Sep 2023, Montreal, Canada. pp.1-2, ⟨10.1109/IRMMW-THz57677.2023.10299212⟩. ⟨hal-04277435⟩

• COMM

From Noise analysis to Error Bars on Refractive Index In THz-TDS

Noureddin Osseiran, Jeyan Bichon, Aditya Raj, Théo Hannotte, Sophie Eliet, Romain Peretti

We present a new methodology for computing error bars in THz-TDS experiments and distribute open source software for this purpose. Pursuing our efforts in noise analysis and data processing of THz-TDS experiments, we followed a standard approach to derive the error bars from the simplest quantities…

48th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Sep 2023, Montreal, Canada. pp.1-2, ⟨10.1109/IRMMW-THz57677.2023.10299169⟩. ⟨hal-04254689⟩