A5032835860- Laser-Matter Interactions and Applications
- Laser-Plasma Interactions and Diagnostics
- Atomic and Molecular Physics
- Advanced Fiber Laser Technologies
- Advanced X-ray Imaging Techniques
- Laser-induced spectroscopy and plasma
- Terahertz technology and applications
- Sesquiterpenes and Asteraceae Studies
- Natural product bioactivities and synthesis
- Cold Atom Physics and Bose-Einstein Condensates
- Phytochemistry and Biological Activities
- Mass Spectrometry Techniques and Applications
Beijing Computational Science Research Center
2018-2020
Institute of Applied Physics and Computational Mathematics
2013-2019
During the ionization of atoms irradiated by linearly polarized intense laser fields, we find for first time that transverse momentum distribution photoelectrons can be well fitted a squared zeroth-order Bessel function because quantum interference effect glory rescattering. The characteristic is determined common angular number semiclassical paths termed as trajectories, which are launched with different nonzero initial momenta distributed on specific circle in plane and finally deflected...
We investigate the ionization dynamics of atoms irradiated by an intense laser field using a semiclassical model that includes magnetic Lorentz force in rescattering process. find electrons tunneled with different initial transverse momenta (i.e., perpendicular to instantaneous electric direction) distributed on specific circle momentum plane can finally converge same after experiencing Coulomb forward scattering. These electron trajectories lead bright spot structure two-dimensional...
Partitioning of photon momenta between the ion and electron in photoionization involved subcycle dynamics are investigated using an extended semiclassical model, where momentum transfer from to electron-ion system via (magnetic) Lorentz force is taken into account. It found that both tunneling rescattering processes, Coulomb attraction plays a role partitioning. The effect especially important for linearly polarized light since photons lift out bound state do not always contribute forward...
In this work, we propose a method to characterize the temporal structure of arbitrary optical laser pulses with low pulse energies. Our theory is based on strong-field photoelectron holography glory rescattering effect as underlying mechanism in near-forward direction. Utilizing subfemtosecond process fast gate sample unknown light pulse, time-dependent vectorial electric field can be retrieved from streaking momentum spectra. avoids challenging task generation or manipulation attosecond and...
Glory rescattering is discovered in strong field atomic ionization. By developing glory theory, we resolve the discrepancies between theories and experiments on holographic patterns, shed light quantum interference aspects of LES.
The rescattering scenario that the ionized photoelectron is guided back to vicinity of atomic core under an oscillating laser field key understanding strong processes. Strong holography, which stems from interference direct and waves, has great potential applications in studying physics detecting ultrafast electron dynamics. article develops underlying quantum orbits picture. By including Coulomb potential, uniform glory theory introduced, gives reasonably quantitative results accord with...