The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics

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The hyperfine structure of the and states and 5) for the lithium isoelectronic sequence
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics - Tập 2 - Trang 21-27 - 1998
X.-X. Guan, Z.-W. Wang
The non-relativistic hyperfine structure parameters, the Fermi contact, the spin-dipolar, the orbital and the electronic quadrupole terms, of the lithium-like ground state and low-lying states, and (n =2, 3, 4, and 5), are calculated with the full core plus correlation (FCPC) wave functions. With the 794- and 1185-term Sla...... hiện toàn bộ
Stability of a plasma foil in the radiation pressure dominated regime
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics - Tập 55 - Trang 399-405 - 2009
F. Pegoraro, S. V. Bulanov
The stability of a thin plasma foil accelerated to relativistic velocities by the radiation pressure of an ultra high intensity electromagnetic pulse is investigated. The effects of the onset of a Rayleigh-Taylor-like instability are discussed in the context of the ion acceleration process during the interaction of the laser pulse with the plasma. It is stressed that the experimental study of this...... hiện toàn bộ
Interferometric precision measurements with Bose–Einstein condensate solitons formed by an optical lattice
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics - Tập 42 - Trang 455-460 - 2007
N. Veretenov, Yu. Rozhdestvensky, N. Rosanov, V. Smirnov, S. Fedorov
We propose the precision measurement of both angular rotation and of the gradient magnetic of a field based on the use of matter wave interferometers with soliton states of a Bose-Einstein condensate (BEC). We consider the formation of these soliton states in a BEC with negative scattering length by an optical lattice produced by two counterpropagating laser beams. We determine the parameters of b...... hiện toàn bộ
Atom interferometry gravity-gradiometer for the determination of the Newtonian gravitational constant G
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics - - 2006
A. Bertoldi, G. Lamporesi, L. Cacciapuoti, M. de Angelis, M. Fattori, T. Petelski, A. Peters, M. Prevedelli, J. Stuhler, G. M. Tino
We developed a gravity-gradiometer based on atom interferometry for the determination of the Newtonian gravitational constant G. The apparatus, combining a Rb fountain, Raman interferometry and a juggling scheme for fast launch of two atomic clouds, was specifically designed to reduce possible systematic effects. We present instrument performances and preliminary results for the measurement of G w...... hiện toàn bộ
Influence of dispersion distribution on the propagation and compression of self-similar optical beam
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics - Tập 73 - Trang 1-9 - 2019
Qiaofen Zhang, Huaizhong Li, Liming Wu, Jian Gao
The influence of different dispersion-distribution in dispersion-decreasing optical fiber with normal group-velocity dispersion (ND-DDF) on the generation and compression of self-similar optical beam is investigated in this paper. The split-step Fourier numerical method is adopted and the amplitude of the pulses’ envelope under different distributed dispersion is determined numerically. The gener...... hiện toàn bộ
Fast all-optical nuclear spin echo technique based on EIT
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics - Tập 70 - Trang 1-9 - 2016
Andreas Walther, Adam N. Nilsson, Qian Li, Lars Rippe, Stefan Kröll
We demonstrate an all-optical Raman spin echo technique, using electromagnetically induced transparency (EIT) to create the pulses required for a spin echo sequence: initialization, pi-rotation, and readout. The first pulse of the sequence induces coherence directly from a mixed state, and the technique is used to measure the nuclear spin coherence of an inhomogeneously broadened ensemble of rare...... hiện toàn bộ
Energy levels of a particle confined in a super-circular box
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics - Tập 46 - Trang 41-50 - 2007
N. Bera, J. K. Bhattacharjee, S. Mitra, S. P. Khastgir
We find the energy levels of a free particle confined in a two dimensional infinite potential well having super-circular boundary (|x|n+|y|n=an where n is a rational number and a is a positive real number) by perturbing about the equivalent circle (n=2). The ground state energies are very accurate over a wide range of n and can be improved further by introducing a phenomenological constant determ...... hiện toàn bộ
Shake-off effects on the production and decay of hollow ions
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics - - 1992
Gaber Omar, Yukap Hahn
Dimer dissociation energies of small odd-size clusters
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics - Tập 21 Số 2 - Trang 163-166 - 2002
Manuel Vogel, Klavs Hansen, A. Herlert, L. Schweikhard
High-intensity isolated attosecond X-ray pulse generation by using low-intensity ultraviolet–mid-infrared laser beam
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics - Tập 72 - Trang 1-9 - 2018
Liqiang Feng, Yi Li
An efficient approach to obtain the high-intensity isolated attosecond X-ray pulse has been proposed and studied by using the low-intensity ultraviolet–mid-infrared (UV–MIR) laser beam. It is found that with the superposition of the UV–MIR beam, not only the harmonic efficiency can be enhanced, but also the harmonic cutoff can be extended to the X-ray region. In detail, the results can be separat...... hiện toàn bộ
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