Zobrazeno 1 - 10
of 289
pro vyhledávání: '"Mével, E."'
Autor:
Veyrinas, K., Plach, M., Peschel, J., Hoflund, M., Catoire, F., Valentin, C., Smorenburg, P., Dacasa, H., Maclot, S., Guo, C., Wikmark, H., Zair, A., Strelkov, V., Picot, C., Arnold, C., Eng-Johnsson, P., Huillier, A. L, Mevel, E., Constant, E.
Attosecond pulses created by high-order harmonic generation in gases often exhibit strong chromatic aberrations, arising from the broad bandwidth and wavelength-dependent nonlinear light-matter interaction. When the driving laser intensity varies spa
Externí odkaz:
http://arxiv.org/abs/2301.11017
Autor:
Haessler, S., Fabre, B., Higuet, J., Caillat, J., Ruchon, T., Breger, P., Carré, B., Constant, E., Maquet, A., Mével, E., Salières, P., Taïeb, R., Mairesse, Y.
Publikováno v:
Physical Review A 80, 011404(R) (2009)
We photoionize nitrogen molecules with a train of extreme ultraviolet attosecond pulses together with a weak infrared field. We measure the phase of the two-color two-photon ionization transition (molecular phase) for different states of the ion. We
Externí odkaz:
http://arxiv.org/abs/2207.08310
Autor:
Hort, O., Dubrouil, A., Khokhlova, M. A., Descamps, D., Petit, S., Burgy, F., Mevel, E., Constant, E., Strelkov, V. V.
We observe a new regime of coherent XUV radiation generation in noble gases induced by femtosecond pulses at very high intensities. This XUV emission has both a reduced divergence and spectral width as compared to high-order harmonic generation (HHG)
Externí odkaz:
http://arxiv.org/abs/2005.06415
Autor:
Veyrinas, K., Valentin, C., Descamps, D., Péjot, C., Burgy, F., Catoire, F., Constant, E., Mével, E.
Controlling the wavefront of an extreme ultraviolet (XUV) high-order harmonic beam during the generation process offers to focus the beam without resorting to any XUV optics. By characterizing the XUV intensity profile and wavefront, we quantitativel
Externí odkaz:
http://arxiv.org/abs/1912.12707
Publikováno v:
In Neuropsychiatrie de l'enfance et de l'adolescence May 2023 71(3):109-116
Autor:
Quintard, L., Strelkov, V., Vabek, J., Hort, O., Dubrouil, A., Descamps, D., Burgy, F., Péjot, C., Mével, E., Catoire, F., Constant, E.
By experimentally studying high-order harmonic beams generated in gases, we show how the spatial characteristics of these ultrashort XUV beams can be finely controlled under standard generation conditions. For the first time, we demonstrate that thes
Externí odkaz:
http://arxiv.org/abs/1810.07282
Autor:
Ruf, H., Handschin, C., Cireasa, R., Thiré, N., Ferré, A., Petit, S., Descamps, D., Mével, E., Constant, E., Blanchet, V., Fabre, B., Mairesse, Y.
High order harmonic generation from clusters is a controversial topic: conflicting theories exist, with different explanations for similar experimental observations. From an experimental point of view, separating the contributions from monomers and c
Externí odkaz:
http://arxiv.org/abs/1301.5487
Autor:
Shafir, D., Fabre, B., Higuet, J., Soifer, H., Dagan, M., Descamps, D., Mevel, E., Petit, S., Worner, H. J., Pons, B., Dudovich, N., Mairesse, Y.
Publikováno v:
Phys. Rev. Lett. 108, 203001 (2012)
Recollision processes provide direct insight into the structure and dynamics of electronic wave functions. However, the strength of the process sets its basic limitations - the interaction couples numerous degrees of freedom. In this Letter we decoup
Externí odkaz:
http://arxiv.org/abs/1301.4112
Autor:
Ruf, H., Handschin, C., Ferré, A., Thiré, N., Bertrand, J. B., Bonnet, L., Cireasa, R., Constant, E., Corkum, P. B., Descamps, D., Fabre, B., Larregaray, P., Mével, E., Petit, S., Pons, B., Staedter, D., Wörner, H. J., Villeneuve, D. M., Mairesse, Y., Halvick, P., Blanchet, V.
We study theoretically and experimentally the electronic relaxation of NO2 molecules excited by absorption of one ~400 nm pump photon. Semi-classical simulations based on trajectory surface hopping calculations are performed. They predict fast oscill
Externí odkaz:
http://arxiv.org/abs/1211.0917
Autor:
Higuet, J., Ruf, H., ThirÉ, N., Cireasa, R., Constant, E., Cormier, E., Descamps, D., MÉvel, E., Petit, S., Pons, B., Mairesse, Y., Fabre, B.
We study the Cooper minimum in high harmonic generation from argon atoms using long wavelength laser pulses. We find that the minimum in high harmonic spectra is systematically shifted with respect to total photoionization cross section measurements.
Externí odkaz:
http://arxiv.org/abs/1012.2676