Zobrazeno 1 - 10
of 968
pro vyhledávání: '"CONSTANT, 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:
Weissenbilder, R., Carlström, S., Rego, L., Guo, C., Heyl, C. M., Smorenburg, P., Constant, E., Arnold, C. L., L'Huillier, A.
High-order harmonic generation (HHG) in gases leads to short-pulse extreme ultraviolet (XUV) radiation useful in a number of applications, for example, attosecond science and nanoscale imaging. However, this process depends on many parameters and the
Externí odkaz:
http://arxiv.org/abs/2202.08202
We present a recently developed terahertz platform. An air plasma produced by an ultrashort two-color laser pulse serves as a broadband terahertz source, with electric field that has peak amplitude in the MV/cm range. Air biased coherent detection of
Externí odkaz:
http://arxiv.org/abs/2112.09657
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
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
In this paper, the Immersed Boundary Method (IBM) proposed by Pinelli is implemented for finite volume approximations of incompressible Navier-Stokes equations solutions in the open source toolbox OpenFOAM version 2.2. Solid obstacles are described u
Externí odkaz:
http://arxiv.org/abs/1609.04364
Autor:
Annaloro, J., Ledermann, V., Constant, E., Spel, M., Vasse, C., Rivola, V., Drozdov, S.M., Omaly, P.
Publikováno v:
In The Journal of Space Safety Engineering June 2020 7(2):113-124
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