Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Ruchon Thierry"'
Autor:
Hergott Jean-François, Réau Fabrice, Lericheux Nicolas, Guer Matthieu, Marroux Hugo, Géneaux Romain, Tcherbakoff Olivier, Lepetit Fabien, Bresteau David, Ruchon Thierry, Salières Pascal, Auguste Thierry, D’Oliveira Pascal
Publikováno v:
EPJ Web of Conferences, Vol 307, p 04010 (2024)
We report here on the experimental pulse duration compression down to sub-20fs of up to 2mJ, 330fs pulses of an 80W Ytterbium laser, using argon-filled multi-pass-cell reproduced by numerical calculations stressing the role of the driver pulse profil
Externí odkaz:
https://doaj.org/article/524142031bb4470f98028dfb78c2cf20
Autor:
Guer Matthieu, Luttmann Martin, Vimal Mekha, Hergott Jean-François, Zelaquett Khoury Antonio, Hernández-García Carlos, Pisanty Emilio, Ruchon Thierry
Publikováno v:
EPJ Web of Conferences, Vol 287, p 11005 (2023)
Exotic light fields combining non-trivial spin and angular momentum may not be eigenstates of either the spin or orbital angular momenta operators. For these fields, it is relevant to define a Generalized Angular Momentum operator of which they are e
Externí odkaz:
https://doaj.org/article/3f750e58b080440e82258a564ab216fb
Publikováno v:
EPJ Web of Conferences, Vol 255, p 13004 (2021)
In a recent work [1], we demonstrated how laser-dressed ionization can be harnessed to control with attosecond accuracy the time delay between an extreme-ultraviolet (XUV) attosecond pulse train and an infrared (IR) femtosecond pulse. In this case, t
Externí odkaz:
https://doaj.org/article/2a0e55dae4a34f83a5741de0c8a32877
Autor:
Fanciulli, Mauro, Bresteau, David, Gaudin, Jérome, Dong, Shuo, Géneaux, Romain, Ruchon, Thierry, Tcherbakoff, Olivier, Minár, Ján, Heckmann, Olivier, Richter, Maria Christine, Hricovini, Karol, Beaulieu, Samuel
Publikováno v:
Phys. Rev. Lett. 131, 066402 (2023)
We performed spin-, time- and angle-resolved extreme ultraviolet photoemission spectroscopy (STARPES) of excitons prepared by photoexcitation of inversion-symmetric 2H-WSe$_2$ with circularly polarized light. The very short probing depth of XUV photo
Externí odkaz:
http://arxiv.org/abs/2306.03610
Autor:
Luttmann, Martin, Vimal, Mekha, Guer, Matthieu, Hergott, Jean-François, Khoury, Antonio Z., Hernández-García, Carlos, Pisanty, Emilio, Ruchon, Thierry
Symmetries and conservation laws of energy, linear momentum and angular momentum play a central role in physics, in particular in nonlinear optics. Recently, light fields with non trivial topology, such as polarization M\"obius strips or torus-knot b
Externí odkaz:
http://arxiv.org/abs/2209.00454
Autor:
Fanciulli, Mauro, Pancaldi, Matteo, Pedersoli, Emanuele, Vimal, Mekha, Bresteau, David, Luttmann, Martin, De Angelis, Dario, Ribič, Primož Rebernik, Rösner, Benedikt, David, Christian, Spezzani, Carlo, Manfredda, Michele, Sousa, Ricardo, Prejbeanu, Ioan-Lucian, Vila, Laurent, Dieny, Bernard, De Ninno, Giovanni, Capotondi, Flavio, Sacchi, Maurizio, Ruchon, Thierry
We report on the experimental evidence of magnetic helicoidal dichroism, observed in the interaction of an extreme ultraviolet vortex beam carrying orbital angular momentum with a magnetic vortex. Numerical simulations based on classical electromagne
Externí odkaz:
http://arxiv.org/abs/2103.13697
Autor:
Luttmann, Martin, Bresteau, David, Hergott, Jean-François, Tcherbakoff, Olivier, Ruchon, Thierry
Publikováno v:
Phys. Rev. Applied 15, 034036 (2021)
The blooming of attosecond science (1 as = $10^{-18}$ s) has raised the need to exquisitely control the delay between two ultrashort light pulses, one of them being intense and in the visible spectral range, while the second is weak and in the Extrem
Externí odkaz:
http://arxiv.org/abs/2012.09528
Autor:
Ruchon, Thierry, Fanciulli, Mauro
Identifying and imaging spin textures of ever more complex magnetic structures has become a major challenge in the past decade, especially at ultrashort timescales. Most of current approaches are based on the analysis of their polarization and magnet
Externí odkaz:
http://arxiv.org/abs/2005.08349
Autor:
Fanciulli, Mauro, Bresteau, David, Vimal, Mekha, Luttmann, Martin, Sacchi, Maurizio, Ruchon, Thierry
Publikováno v:
Phys. Rev. A 103, 013501 (2021)
We present the classical electromagnetic theory framework of reflection of a light beam carrying Orbital Angular Momentum (OAM) by an in-plane magnetic structure with generic symmetry. Depending on the magnetization symmetry, we find a change in the
Externí odkaz:
http://arxiv.org/abs/2005.08354
Autor:
Beaulieu, Samuel, Comby, Antoine, Clergerie, Alex, Caillat, Jérémie, Descamps, Dominique, Dudovich, Nirit, Fabre, Baptiste, Géneaux, Romain, Légaré, François, Petit, Stéphane, Pons, Bernard, Porat, Gil, Ruchon, Thierry, Taïeb, Richard, Blanchet, Valérie, Mairesse, Yann
Publikováno v:
Science 358, 1288-1294 (2017)
Chiral light-matter interactions have been investigated for two centuries, leading to the discovery of many chiroptical processes used for discrimination of enantiomers. Whereas most chiroptical effects result from a response of bound electrons, phot
Externí odkaz:
http://arxiv.org/abs/2004.05010