Zobrazeno 1 - 10
of 105
pro vyhledávání: '"Vanwolleghem, Mathias"'
Autor:
Koleják, Pierre, Lezier, Geoffrey, Vala, Daniel, Mathmann, Baptiste, Halagačka, Lukáš, Gelnárová, Zuzana, Dusch, Yannick, Lampin, Jean-François, Tiercelin, Nicolas, Postava, Kamil, Vanwolleghem, Mathias
Spintronic Terahertz Emitters (STE) represent a significant advancement in source technology, exploiting the ultrafast demagnetization process of spin-electrons to unveil a 30THz wide, gapless spectrum, accessible through femtosecond lasers across th
Externí odkaz:
http://arxiv.org/abs/2402.05833
Autor:
Paries, Felix, Tiercelin, Nicolas, Lezier, Geoffrey, Vanwolleghem, Mathias, Selz, Felix, Syskaki, Maria-Andromachi, Kammerbauer, Fabian, Jakob, Gerhard, Jourdan, Martin, KlÄui, Mathias, Kaspar, Zdenek, Kampfrath, Tobias, Seifert, Tom S., Von Freymann, Georg, Molter, Daniel
Spintronic terahertz emitters promise terahertz sources with an unmatched broad frequency bandwidth that are easy to fabricate and operate, and therefore easy to scale at low cost. However, current experiments and proofs of concept rely on free-space
Externí odkaz:
http://arxiv.org/abs/2305.01365
Autor:
Mičica Martin, Wright Adrien, Koleják Pierre, Lezier Geoffrey, Postava Kamil, Hawecker Jacques, De Vetter Anna, Tignon Jerome, Mangeney Juliette, Jaffres Henri, Lebrun Romain, Tiercelin Nicolas, Vanwolleghem Mathias, Dhillon Sukhdeep
Publikováno v:
Nanophotonics, Vol 13, Iss 10, Pp 1899-1907 (2024)
Spintronic terahertz emitters (STEs), based on optical excitation of nanometer thick ferromagnetic/heavy metal (FM/HM) heterojunctions, have become important sources for the generation of terahertz (THz) pulses. However, the efficiency of the optical
Externí odkaz:
https://doaj.org/article/1ff053090225486a8fab675b5be64492
Autor:
Koleják, Pierre, Lezier, Geoffrey, Postava, Kamil, Lampin, Jean-François, Tiercelin, Nicolas, Vanwolleghem, Mathias
Publikováno v:
ACS Photonics (2022)
Polarization control of THz light is of paramount interest for the numerous applications offered in this frequency range. Recent developments in THz spintronic emitters allow for a very efficient broadband emission, and especially unique is their abi
Externí odkaz:
http://arxiv.org/abs/2111.07118
Akademický článek
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Autor:
Peretti, Romain, Mitryukovskiy, Sergey, Froberger, Kevin, Mebarki, Aniss, Eliet-Barois, Sophie, Vanwolleghem, Mathias, Lampin, Jean-Francois
Publikováno v:
IEEE Transactions on Terahertz Science and Technology, Institute of Electrical and Electronics Engineers, 2018, https://ieeexplore.ieee.org/document/8585050
We report on a method and an associated open source software, Fit@TDS, working on an average personal computer. The method is based on the fitting of a time-trace data of a terahertz time-domain-spectroscopy system enabling the retrieval of the refra
Externí odkaz:
http://arxiv.org/abs/1810.12567
Autor:
Chochol, Jan, Postava, Kamil, Čada, Michael, Vanwolleghem, Mathias, Halagačka, Lukáš, Vignaud, Dominique, Lampin, Jean-François, Pištora, Jaromír
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:
http://arxiv.org/abs/1609.01158
Autor:
Petrov, Alexander, Jalas, Dirk, Eich, Manfred, Freude, Wolfgang, Fan, Shanhui, Yu, Zongfu, Baets, Roel, Popović, Miloš, Melloni, Andrea, Joannopoulos, John D., Vanwolleghem, Mathias, Doerr, Christopher R., Renner, Hagen
Wang et al. [1] demonstrated different power transmission coefficients for forward and backward propagation in simulation and experiment. From such a demonstration, the central claim of their paper is that "the spatial inversion symmetry breaking dio
Externí odkaz:
http://arxiv.org/abs/1301.7243
In the article "Nonreciprocal Light Propagation in a Silicon Photonic Circuit" (Science 333, 729-733 (2011) a nonreciprocal waveguide system based on a combination of silicon, dielectrics and metals is reported. In this Comment it is explained that t
Externí odkaz:
http://arxiv.org/abs/1110.2647
Autor:
Śmigaj, Wojciech, Magdenko, Liubov, Romero-Vivas, Javier, Guenneau, Sébastien, Dagens, Béatrice, Gralak, Boris, Vanwolleghem, Mathias
We propose a new class of compact integrated optical circulators providing a large isolation level while maintaining a straightforward technological feasibility. Their layout is based on a nonreciprocal radial Bragg cavity composed of concentric magn
Externí odkaz:
http://arxiv.org/abs/1102.4248