Classical Trajectory Perspective of Atomic Ionization in by Jie Liu

By Jie Liu

The ionization of atoms and molecules in powerful laser fields is an lively box in smooth physics and has flexible purposes in akin to attosecond physics, X-ray iteration, inertial constrained fusion (ICF), scientific technological know-how and so forth. Classical Trajectory viewpoint of Atomic Ionization in powerful Laser Fields covers the fundamental suggestions during this box and discusses many attention-grabbing issues utilizing the semiclassical version of classical trajectory ensemble simulation, that is essentially the most winning ionization versions and has some great benefits of a transparent photograph, possible computing and accounting for lots of beautiful experiments quantitatively. The booklet additionally provides many functions of the version in such issues because the unmarried ionization, double ionization, impartial atom acceleration and different well timed concerns in robust box physics, and supplies important messages to readers with offering the classical trajectory viewpoint at the powerful box atomic ionization. The booklet is meant for graduate scholars and researchers within the box of laser physics, atom molecule physics and theoretical physics. Dr. Jie Liu is a professor of Institute of utilized Physics and Computational arithmetic, China and Peking University.

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Classical Trajectory Perspective of Atomic Ionization in Strong Laser Fields: Semiclassical Modeling

The ionization of atoms and molecules in robust laser fields is an energetic box in sleek physics and has flexible purposes in equivalent to attosecond physics, X-ray new release, inertial constrained fusion (ICF), scientific technology etc. Classical Trajectory standpoint of Atomic Ionization in robust Laser Fields covers the elemental techniques during this box and discusses many attention-grabbing subject matters utilizing the semiclassical version of classical trajectory ensemble simulation, that is essentially the most winning ionization versions and has some great benefits of a transparent photo, possible computing and accounting for lots of beautiful experiments quantitatively.

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Rev. Lett. : Europhys. Lett. : J. , Chen, S. : Chin. Phys. : J. Phys. , Eberly, J. : J. Opt. Soc. Am. B 7, 564 (1990) Eberly, J. , Kulander, K. : Sci. : Phys. Rev. Lett. : Phys. Rev. Lett. 66, 2601 (1991) de Boer, M. : Phys. Rev. Lett. 71, 3263 (1993) Fedorov, M. , Movsesian, A. :The traditional atomic stabilization requires that the laser frequency is higher than or at least comparable with the bound energy, which is usually not satisfied for the atoms in ground state. The stabilization issue is extended to the Rydberg atoms.

On the other aspect, the dynamical details of the electron recollision process is hardly extracted from the solution of the time-dependent Schrödinger equation. In this section, we address the influence of several physical mechanisms, such as the electron-electron and electron-ion interaction, on the finger-like structure, achieve insight into underlying subcyle trajectory dynamics by exploiting the developed semiclassical model. 1 Finger-Like Structure The resulting electron momentum distribution, calculated with our semiclassical model for the same parameters as in the experiment [13], is shown in Fig.

Under this approximation, the final energy of electron is E f = E 0 + E. When the tunneled electrons are released in a certain window of initial field phase ωt0 and transverse velocity v⊥ , the final energy E f < 0. We call this window as the survival window. The boundary line E 0 + E = 0 of survival window are plotted in Fig. 7d (labeled by red lines) for He and Mg, respectively. 6 Classical Trajectory Interference In the semiclassical model, it is assumed that wavepacket propagation in the posttunneling process can be well described within classical mechanics framework.

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