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相关论文: Dynamics of photo-activated Coulomb complexes

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Strong interaction between light and matter waves, such as electron beams in electron microscopes, has recently emerged as a new tool for understanding entanglement. Here, we systematically investigate electron-light interactions from first…

光学 · 物理学 2020-08-26 Nahid Talebi

The full three-dimensional photoelectron momentum distributions of argon are measured in intense near-circularly polarized laser fields. We observed that the transverse momentum distribution of ejected electrons by 410-nm near-circularly…

原子物理 · 物理学 2020-02-19 Xiang Huang , Qingbin Zhang , Shengliang Xu , Xianglong Fu , Xu Han , Wei Cao , Peixiang Lu

The interaction of strong laser fields with matter intrinsically provides powerful tools to image transient dynamics with an extremely high spatiotemporal resolution. Here, we study strong-field ionisation of laser-aligned molecules and…

In conditions where the interaction betweeen an atom and a short high-frequency extreme ultraviolet laser pulse is a perturbation, we show that a simple theoretical approach, based on Coulomb-Volkov-type states, can make reliable…

原子物理 · 物理学 2009-11-07 Guillaume Duchateau , Eric Cormier , Robert Gayet

The radiation of photons by electrons is investigated in the framework of quantum electrodynamics up to the second order in the coupling constant $e$. The $N$-particle, coherent, and thermal initial states are considered and the forms of…

高能物理 - 理论 · 物理学 2022-09-08 P. O. Kazinski , T. V. Solovyev

Electron capture by {\it isolated} atoms and ions proceeds by photorecombination. In this process a species captures a free electron by emitting a photon which carries away the excess energy. It is shown here that in the presence of an {\it…

量子物理 · 物理学 2010-03-18 Kirill Gokhberg , Lorenz S. Cederbaum

The coupling of photons with (ultra-) relativistic atomic nuclei is presented in two particular circumstances: very high electromagnetic fields and very short photon pulses. We consider a typical situation where the (bare) nuclei (fully…

核理论 · 物理学 2013-12-05 M. Apostol , M. Ganciu

We theoretically study how time- and angle-resolved photoemission spectroscopy can be applied for imaging coherent electron dynamics in molecules. We consider a process in which a pump pulse triggers coherent electronic dynamics in a…

光学 · 物理学 2018-12-11 Daria Popova-Gorelova , Jochen Küpper , Robin Santra

The electron kinetics in nanowire-based hot-carrier solar cells is studied, where both relaxation and extraction are considered concurrently. Our kinetics is formulated in the many-particle basis of the interacting system. Detailed…

介观与纳米尺度物理 · 物理学 2019-10-15 Alex Arash Sand Kalaee , Andreas Wacker

Strong-field light-matter interactions initiate a wide range of phenomena in which the quantumpaths of electronic wavepackets can be manipulated by tailoring the laser field. Among the electronsreleased by a strong laser pulse from atomic…

化学物理 · 物理学 2022-11-30 S Rozen , S Larroque , N Dudovich , Y Mairesse , B Pons

Scattering of beams of light and matter from multi-electron atomic targets is formulated in the position representation of quantum mechanics. This yields expressions for the probability amplitude, a(b), for a wide variety of processes. Here…

量子物理 · 物理学 2015-09-09 Lev Kaplan , J. H. McGuire

The new regime of resonant nuclear photoexcitation rendered possible by x-ray free electron laser beams interacting with solid state targets is investigated theoretically. Our results unexpectedly show that secondary processes coupling…

核理论 · 物理学 2014-02-28 Jonas Gunst , Yuri A. Litvinov , Christoph H. Keitel , Adriana Pálffy

The interaction of atomic clusters with short, intense pulses of laser light to form extremely hot, dense plasmas has attracted extensive experimental and theoretical interest. The high density of atoms within the cluster greatly enhances…

原子物理 · 物理学 2009-11-11 Zachary B. Walters , Robin Santra , Chris H. Greene

We investigate the effect of dynamic electron correlation on high-harmonic generation in helium atoms using intense visible light (\lambda=390nm). Two complementary approaches are used which account for correlation in an approximate manner:…

量子物理 · 物理学 2009-05-21 G. A. McKenna , R. Nepstad , J. F. McCann , D. Dundas

The ion-electron coupling properties for a ion impurity in an electron gas and for a two component plasma are carried out on the basis of a regularized electron-ion potential removing the short-range Coulomb divergence. This work is largely…

统计力学 · 物理学 2009-11-07 B Talin , E Dufour , A Calisti , M A Gigosos , M A Gonzalez , T del Rio Gaztelurrutia , J Dufty

A single-atom 'double-slit' experiment is realized by photo-ionizing Rubidium atoms using two independent low power lasers. The photoelectron wave of well-defined energy recedes to the continuum either from the 5P or 6P states in the same…

原子物理 · 物理学 2019-01-17 James Pursehouse , Andrew James Murray , Jonas Wätzel , Jamal Berakdar

Recent advancements in time-resolved electron and photon detection enable novel correlative measurements of electrons and their associated cathodoluminescence (CL) photons within a transmission electron microscope. These studies are pivotal…

We solve the hydrodynamic-ballistic equations of motion for a one-dimensional time-dependent Thomas-Fermi model of Cl_2 exposed to an intense subpicosecond laser field, and observe simultaneous multielectron ionization and molecular…

原子物理 · 物理学 2009-10-30 Miroslaw Brewczyk , Kazimierz Rzazewski , Charles W. Clark

Understanding tunneling from an atomically sharp tip to a metallic surface requires to account for interactions on a nanoscopic scale. Inelastic tunneling of electrons generates emission of photons, whose energies intuitively should be…

介观与纳米尺度物理 · 物理学 2015-06-19 F. Xu , C. Holmqvist , W. Belzig

Intense, ultrashort pulses of 800 nm laser light (12 fs, $\sim$4 optical cycles) of peak intensity 5$\times$10$^{14}$ W cm$^{-2}$ have been used to irradiate gas-phase Xe$_n$ clusters ($n$=500-25,000) so as to induce multiple ionization and…

原子与分子团簇 · 物理学 2015-05-19 D. Mathur , F. A. Rajgara