Výsledky vyhledávání - "Mathias Vanwolleghem"

Akademický článek

Maximizing the Electromagnetic Efficiency of Spintronic Terahertz Emitters

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

Publikováno v: Advanced Photonics Research, Vol 5, Iss 11, Pp n/a-n/a (2024)

Optically pumped spintronic terahertz emitters (STEs) have, in less than a decade, strongly impacted terahertz (THz) source technology, by the combination of their Fourier‐limited ultrafast response, their phononless emission spectrum and their wav

Externí odkaz: https://doaj.org/article/0245d5c9347c44268001babaf985e650

Zobrazit plný text záznamu

Akademický článek

Plasmonic behavior of III-V semiconductors in far-infrared and terahertz range

Autor: Jan Chochol, Kamil Postava, Michael Čada, Mathias Vanwolleghem, Martin Mičica, Lukáš Halagačka, Jean-François Lampin, Jaromír Pištora

Publikováno v: Journal of the European Optical Society-Rapid Publications, Vol 13, Iss 1, Pp 1-8 (2017)

Abstract Background In this article, III-V semiconductors are proposed as materials for far-infrared and terahertz plasmonic applications. We suggest criteria to estimate appropriate spectral range for each material including tuning by fine doping an

Externí odkaz: https://doaj.org/article/6e94bc065c6c4410b28ade967f149a20

Zobrazit plný text záznamu

Akademický článek

Magneto-optical properties of InSb for terahertz applications

Autor: Jan Chochol, Kamil Postava, Michael Čada, Mathias Vanwolleghem, Lukáš Halagačka, Jean-François Lampin, Jaromír Pištora

Publikováno v: AIP Advances, Vol 6, Iss 11, Pp 115021-115021-7 (2016)

Magneto-optical permittivity tensor spectra of undoped InSb, n-doped and p-doped InSb crystals were determined using the terahertz time-domain spectroscopy (THz-TDS) and the Fourier transform far-infrared spectroscopy (far-FTIR). A Huge polar magneto

Externí odkaz: https://doaj.org/article/1120fe9e256242a095695f2ea37b8ab8

Zobrazit plný text záznamu

Report

Fully reversible magnetoelectric voltage controlled THz polarization rotation in magnetostrictive spintronic emitters on PMN-PT

Autor: Geoffrey, Lezier, Pierre, Koleják, Jean-François, Lampin, Kamil, Postava, Mathias, Vanwolleghem, Nicolas, Tiercelin

Publikováno v: Appl. Phys. Lett. 120, 152404 (2022)

THz polarization control upon generation is a crucially missing functionality. THz spintronic emitters based on the inverse spin Hall effect allow for this by the strict implicit orthogonality between their magnetization state and the emitted polariz

Externí odkaz: http://arxiv.org/abs/2112.00144

Zobrazit plný text záznamu

Magnetization rotation-based polarization control of spintronic terahertz emitter

Autor: Pierre Kolejak, Geoffrey Lezier, Kamil Postava, Jean-Francois Lampin, Nicolas Tiercelin, Mathias Vanwolleghem

Publikováno v: Proceedings of SPIE-The International Society for Optical Engineering
22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics
22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, Sep 2022, Wojanów, Poland. pp.90-90, ⟨10.1117/12.2663659⟩
HAL

oral; International audience; Recently, the terahertz family of sources increased by newly-developed terahertz spintronic emitter (STE), which competes with the traditional in many ways. This30THz-broadband gapless source is versatile due to its low-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::717dcdba5882cd7bd042fb3fba60cb7e
https://hal.science/hal-03761377

Zobrazit plný text záznamu

Reversible Magnetoelectric Control of THz Polarization Rotation in Magnetostrictive Spintronic Emitters on PMN-PT

Autor: Geoffrey Lezier, Pierre Koleják, Jean-François Lampin, Kamil Postava, Mathias Vanwolleghem, Nicolas Tiercelin

Publikováno v: CLEO: Science and Innovations 2022
CLEO: Science and Innovations 2022, May 2022, San Jose, United States. Session-THz Generation and Applications, STh4O.5, ⟨10.1364/CLEO_SI.2022.STh4O.5⟩

International audience; We demonstrate an efficient v oltage c ontrol o f t he p olarization i n Spintronic Terahertz Emitters, by combining a spin pumping multilayer with strong magnetic anisotropy and magnetoelastic properties, and a piezoelectric

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bf4402dadda2930e565f5aae8ad6538
https://hal.science/hal-03773638

Zobrazit plný text záznamu

Short bends using curved mirrors in silicon waveguides for terahertz waves

Autor: Mattias Verstuyft, Elias Akiki, Mathias Vanwolleghem, Guillaume Ducournau, Jean-François Lampin, Benjamin Walter, Fuanki Bavedila, Édouard Lebouvier, Marc Faucher, Bart Kuyken

Publikováno v: Optics Express
Optics Express, 2022, 30 (5), pp. 6656-6670. ⟨10.1364/OE.447268⟩
OPTICS EXPRESS

Dielectric waveguides are capable of confining and guiding terahertz waves along sub-wavelength sized structures. A small feature size allows for a denser integration of different photonic components such as modulators, beam-splitters, wavelength (de

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de4d799daecc46ee859ed80b31ec46fd
https://hal.science/hal-03695019

Zobrazit plný text záznamu

Optimized optical cavity for maximal enhancement of terahertz spintronic emission

Autor: Kamil Postava, Mathias Vanwolleghem, Geoffrey Lezier, Nicolas Tiercelin, Jean-François Lampin, Pierre Kolejak

International audience; Spintronic terahertz emitters are recently developed broadband sources for THz applications based on the ultrafast spin-diffusion in ferromagnetic/nonmagnetic ultra-thin multilayers. We present the enhancement of the terahertz

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52fdb8fe10d6aa31524b4e81ee7d9fdb
https://doi.org/10.1109/irmmw-thz50926.2021.9566885

Zobrazit plný text záznamu

H2S photoacoustic detection with an integrated THz gas sensor for food quality control: [Invited]

Autor: Jean-Francois Lampin, Gaël Mouret, Elias Akiki, Mathias Vanwolleghem, Marie-Hélène Mammez, Benjamin Walter, Guillaume Ducournau

Publikováno v: 2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)
2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Aug 2021, Chengdu, China. pp.1-2, ⟨10.1109/IRMMW-THz50926.2021.9567307⟩
46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)
46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Aug 2021, Chengdu, China. pp.1-2, ⟨10.1109/IRMMW-THz50926.2021.9567307⟩

oral session Spectroscopy/Gas phase spectroscopy 6; International audience; THz photoacoustic (PA) detection of H 2 S gas concentrations on the order of 200 ppm using a Poly-Si membrane as a PA microphone is reported. This result is a first step towa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7f88c3941302b7432653cbe5fc880bf
https://hal.archives-ouvertes.fr/hal-03465148

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání