Zobrazeno 1 - 10
of 49
pro vyhledávání: '"M. A. Bouchene"'
Autor:
M. A. Bouchene, Jean-Christophe Delagnes, M. Jacquey, Antoine Monmayrant, Sébastien Bonhommeau, Béatrice Chatel, P. Zahariev, Bertrand Girard
Publikováno v:
Journal de Physique IV (Proceedings). 119:13-18
We discuss the possibility to control through two different experiments, the propagation effects that occur when an optically dense atomic medium is excited by ultra-short laser pulses. In the first experiment a direct compensation of the dispersion
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 35:1819-1830
We investigate in this paper the properties of electron wavepackets created in the continuum by ultrashort pulses, linearly chirped. We consider alkali atoms, where complete quantum calculations can be carried out. The spreading of the wavepacket is
Publikováno v:
Journal of Modern Optics. 49:183-200
This work presents a theoretical study of two coherent schemes which allow the manipulation of wave packets created in atomic systems by strong ultrashort pulses. Our three-state system is composed of a ground state and two excited states simultaneou
Autor:
M. A. Bouchene
Publikováno v:
Annales de Physique. 27:1-57
Ce travail porte sur l'etude experimentale resolue en temps de la dynamique atomique et moleculaire prenant place sur une echelle de temps femtoseconde. Il presente deux orientations distinctes et complementaires. La premiere concerne l'etude de la d
Publikováno v:
Journal of Physics B
Journal of Physics B, 2001, 34 (8), pp.1497-1512. ⟨10.1088/0953-4075/34/8/313⟩
Journal of Physics B, 2001, 34 (8), pp.1497-1512. ⟨10.1088/0953-4075/34/8/313⟩
International audience; This paper presents a theoretical analysis of the possibilities of producing spin-polarized electrons with a sequence of two ultra-short time-delayed laser pulses. The first pulse, which is right circularly polarized, excites
Autor:
M. A. Bouchene, F. A. Hashmi
Publikováno v:
Physical Review A
Physical Review A, American Physical Society, 2013, 88 (4), 047801 [1 p.]. ⟨10.1103/PhysRevA.88.047801⟩
Physical Review A, American Physical Society, 2013, 88 (4), 047801 [1 p.]. ⟨10.1103/PhysRevA.88.047801⟩
International audience; The recent paper by Ziauddin and Qamar [Phys. Rev. A 85, 055804 (2012)] proposes control of the Goos-Hänchen shift of a Gaussian field incident on a cavity containing duplicated two-level atoms. This control relies on phase c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4e8e77da80948d2a631f32d0d836675
https://hal.archives-ouvertes.fr/hal-00931963
https://hal.archives-ouvertes.fr/hal-00931963
Publikováno v:
Optics Communications. 181:327-336
Wavepacket interferences have been performed in the (4s–5p) transition of atomic potassium using two different schemes to prepare the two-pulse sequence used to excite the atom. In the first case, the pulses at 810 nm are first frequency doubled an
Autor:
M. A. Bouchene, Elmar Schreiber, Bertrand Girard, Céline Catherine Sarah Nicole, C. Meier, S. Magnier
Publikováno v:
The Journal of Chemical Physics. 111:7857-7864
We present a comparison of experiment and theory of ultrafast one-color pump–probe multiphoton ionization spectrocopy of K2. The wave packet propagation in the A 1Σu+ state and in the (2) 1Πg Rydberg state is monitored in detail by changing syste
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 32:5167-5177
This paper presents a theoretical and experimental study of wavepacket interferences created with a combination of two coherent ultrashort laser pulses: a chirped pulse and a Fourier-transform-limited pulse. We show that when the central wavelength o
Publikováno v:
Journal of Chemical Physics
Journal of Chemical Physics, American Institute of Physics, 1998, 108 (12), pp.4862-4876. ⟨10.1063/1.475896⟩
Journal of Chemical Physics, American Institute of Physics, 1998, 108 (12), pp.4862-4876. ⟨10.1063/1.475896⟩
International audience; Two identical femtosecond pulses are used to create a coherent superposition of two vibrational wave packets in a bound electronic state of cesium dimers. The oscillations of these two wave packets are further detected after p