Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Katherine Légaré"'
Autor:
Martin Hennecke, Clemens von Korff Schmising, Kelvin Yao, Emmanuelle Jal, Boris Vodungbo, Valentin Chardonnet, Katherine Légaré, Flavio Capotondi, Denys Naumenko, Emanuele Pedersoli, Ignacio Lopez-Quintas, Ivaylo P. Nikolov, Lorenzo Raimondi, Giovanni De Ninno, Leandro Salemi, Sergiu Ruta, Roy Chantrell, Thomas Ostler, Bastian Pfau, Dieter Engel, Peter M. Oppeneer, Stefan Eisebitt, Ilie Radu
Publikováno v:
Communications Physics, Vol 7, Iss 1, Pp 1-8 (2024)
Abstract Coherent light-matter interactions mediated by opto-magnetic phenomena like the inverse Faraday effect (IFE) are expected to provide a non-thermal pathway for ultrafast manipulation of magnetism on timescales as short as the excitation pulse
Externí odkaz:
https://doaj.org/article/7163ef0ad4144233bd25a2ef5ff206e0
Autor:
Jingdan Liu, Miguel Marquez, Yingming Lai, Heide Ibrahim, Katherine Légaré, Philippe Lassonde, Xianglei Liu, Michel Hehn, Stéphane Mangin, Grégory Malinowski, Zhengyan Li, François Légaré, Jinyang Liang
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Single-shot real-time femtophotography is indispensable for imaging ultrafast dynamics during their times of occurrence. Despite their advantages over conventional multi-shot approaches, existing techniques confront restricted imaging speed
Externí odkaz:
https://doaj.org/article/188a773816e24952ae902a22917a4219
Autor:
Katherine Légaré, Reza Safaei, Guillaume Barrette, Loïc Arias, Philippe Lassonde, Heide Ibrahim, Boris Vodungbo, Emmanuelle Jal, Jan Lüning, Nicolas Jaouen, Zhensheng Tao, Andrius Baltuška, François Légaré, Guangyu Fan
Publikováno v:
Advanced Photonics Research, Vol 2, Iss 11, Pp n/a-n/a (2021)
The use of ultrashort laser pulses with long wavelengths as drivers is a relevant strategy for scaling high harmonic generation (HHG) to higher photon energies. Here, stimulated Raman scattering enhanced by the formation of multidimensional solitary
Externí odkaz:
https://doaj.org/article/54668e3c02614cba88cf68b0fefa2028
Publikováno v:
The International Conference on Ultrafast Phenomena (UP) 2022.
Ultrafast demagnetization is investigated for different excitation wavelengths in the near- and mid-infrared spectral regions. While the initial drop in magnetization remains unchanged, the recovery dynamics are found to be wavelength dependent.
Autor:
Andrius Baltuška, Nicolas Jaouen, Loic Arias, Katherine Légaré, Guangyu Fan, Heide Ibrahim, Reza Safaei, François Légaré, J. Luning, Guillaume Barrette, Emmanuelle Jal, Zhensheng Tao, Philippe Lassonde, Boris Vodungbo
Publikováno v:
Advanced Photonics Research, Vol 2, Iss 11, Pp n/a-n/a (2021)
The use of ultrashort laser pulses with long wavelengths as drivers is a relevant strategy for scaling high harmonic generation (HHG) to higher photon energies. Here, stimulated Raman scattering enhanced by the formation of multidimensional solitary
Autor:
Loic Arias, Emmanuelle Jal, Nicolas Jaouen, Katherine Légaré, Reza Safaei, J. Luning, Andrius Baltuška, Philippe Lassonde, Guillaume Barrette, François Légaré, Guangyu Fan, Heide Ibrahim, Boris Vodungbo
Publikováno v:
2021 IEEE Photonics Conference (IPC).
Multidimensional solitary states generated by intermodal stimulated Raman scattering in a gas-filled hollow-core fiber form red-shifted, few-cycle pulses after propagation thought glass. These pulses, when used to drive the high harmonic generation p
Autor:
Boris Vodungbo, Loic Arias, Reza Safaei, Andrius Baltuška, J. Luning, Guangyu Fan, Emmanuelle Jal, Nicolas Jaouen, Katherine Légaré, François Légaré, Philippe Lassonde, Guillaume Barrette, Heide Ibrahim
Publikováno v:
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
High harmonic generation (HHG) in gasses has become a method of choice among table-top extreme ultraviolet (XUV) sources. In order to push the harmonic cut-off towards higher photon energies, many strategies can be implemented, including red-shifting
Autor:
V. Schuster, J. Beaudoin-Bertrand, Philippe Lassonde, Bruno E. Schmidt, Ojoon Kwon, Michael Spanner, Katherine Légaré, Guangyu Fan, Heide Ibrahim, L. Arias, Antoine Laramée, François Légaré, Andrius Baltuška, Zhensheng Tao, Jens Limpert, Reza Safaei, A. Ehteshami
We demonstrate an efficient approach for enhancing the spectral broadening of long laser pulses and for efficient frequency redshifting by exploiting the intrinsic temporal properties of molecular alignment inside a gas-filled hollow-core fiber (HCF)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a81a343e967ad9d4ca635b3918f1bc4
https://doi.org/10.1364/ol.387037
https://doi.org/10.1364/ol.387037
Autor:
Heide Ibrahim, Charles Varin, François Légaré, Andrius Baltuška, Katherine Légaré, Jan Lüning, Vincent Cardin, Nicolas Jaouen, Tadas Balciunas, Emmanuelle Jal, Boris Vodungbo
Publikováno v:
Physical Review B
Physical Review B, American Physical Society, 2020, 101 (5), ⟨10.1103/PhysRevB.101.054430⟩
Physical Review B, American Physical Society, 2020, 101 (5), ⟨10.1103/PhysRevB.101.054430⟩
Ultrafast demagnetization, a phenomenon of utmost interest in the context of optical control of magnetically recorded data, has been extensively studied in a variety of different materials. However, only a limited number of studies have investigated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6860f2c0a0ee627ae148e45c92996fe2
https://hal.sorbonne-universite.fr/hal-03058588/file/Cardin2020.pdf
https://hal.sorbonne-universite.fr/hal-03058588/file/Cardin2020.pdf
Autor:
Ojoon Kwon, Guangyu Fan, Katherine Légaré, Philippe Lassonde, Heide Ibrahim, François Légaré, Reza Safaei
Publikováno v:
The 22nd International Conference on Ultrafast Phenomena 2020.
Here, we report the first time observation of the formation of highly-stable multidimensional solitary states (MDSS) in gas-filled Hollow-core fibers. The MDSS have broadband red-shifted spectra with an uncommon negative quadratic spectral phase at o