61 citations · 365 across the 28 of their papers we have counts for
28 papers
Coherent Axion Production through Laser Crystal Interaction
Zhan Bai, Xiangyan An, Yuqi Chen +3
We investigate the interaction between an optical laser and an ionic crystal and reveal coherent emission of axions through phase-match between laser and axion fields. Such emissio…
Compact Petawatt-Class Laser Wakefield Acceleration with Plasma Telescope
Xuesong Geng, Liangliang Ji, Baifei Shen
The compactness of laser wakefield acceleration (LWFA) is limited by its long focal length for high power lasers, e.g., more than 10 meters for 1-peatawatt (PW) laser pulse and up…
Transfer of spin to orbital angular momentum in the Bethe-Heitler process
Shaohu Lei, Shiyu Liu, Weiqing Wang +3
According to the conservation of angular momentum, when a plane-wave polarized photon splits into a pair of electron-positron under the influence of the Coulomb field, the spin ang…
Generation of Quantum Vortex Electrons with Intense Laser Pulses
Zhigang Bu, Liangliang Ji, Xuesong Geng +5
Accelerating a free electron to high energy forms the basis for studying particle and nuclear physics. Here it is shown that wavefunction of such an energetic electron can be furth…
Production of polarized particle beams via ultraintense laser pulses
Ting Sun, Qian Zhao, Kun Xue +6
High-energy spin-polarized electron, positron, and -photon beams have many significant applications in the study of material properties, nuclear structure, particle physics, and…
Improving the accuracy of hard photon emission by Sigmoid sampling of the QED-table in particle-in-cell-Monte-Carlo simulations
Yinlong Guo, Xuesong Geng, Liangliang Ji +2
Research on laser-plasma interaction in the quantum-electrodynamic (QED) regime has been greatly advanced by particle-in-cell & Monte-Carlo simulations (PIC-MC). While these simula…
Quasi-monochromatic bright gamma-ray generation from synchronized Compton scattering via azimuthal spatial-temporal coupling
Xuesong Geng, Liangliang Ji, Baifei Shen
High energy photons can be generated via inverse Compton scattering (ICS) in the collision between energetic electrons and intense laser pulse. The development of laser plasma acce…
Generation of relativistic positrons carrying intrinsic orbital angular momentum
Shaohu Lei, Zhigang Bu, Weiqing Wang +2
High energy positrons can be efficiently created through high-energy photons splitting into electron-positron pairs under the influence of the Coulomb field. Here we show that a ne…
Vortex Breit-Wheeler Electron-positron pair creation via vortex gamma-photons
Zhigang Bu, Liangliang Ji, Shaohu Lei +3
Particles in quantum vortex states (QVS) carrying definite orbital angular momenta (OAM) brings new perspectives in various fundamental interaction processes. When unique propertie…
Unruh effect and angular momentum correlation of Rindler particles
Zhigang Bu, Liangliang Ji, Baifei Shen
It is well known that the rotational motion does not induce Unruh effect, because the Minkowski vacuum coincides with the vacuum state defined by the pure rotating observers. Howev…
On the upper limit of laser intensity attainable in non-ideal vacuum
Yitong Wu, Liangliang Ji, Ruxin Li
The upper limit of the laser field strength in perfect vacuum is usually considered as the Schwinger field, corresponding to ~10^29W/cm^2. We investigate such limitations under rea…
Generation of polarized particle beams at relativistic laser intensities
Markus Büscher, Anna Hützen, Liangliang Ji +1
The acceleration of polarized electrons, positrons, protons and ions in strong laser and plasma fields is a very attractive option to obtain polarized beams in the multi-MeV range.…
Axionlike-particle generation by laser-plasma interaction
Shan Huang, Baifei Shen, Zhigang Bu +3
The hypothetical axion and axion-like particles, feebly coupled with photon, have not yet been found in any experiment. With the improvement of laser technique, much stronger but s…
A spin-filter for polarized electron acceleration in plasma wakefields
Yitong Wu, Liangliang Ji, Xuesong Geng +7
We propose a filter method to generate electron beams of high polarization from bubble and blow-out wakefield accelerators. The mechanism is based on the idea to identify all elect…
Simulation of Polarized Beams from Laser-Plasma Accelerators
Anna Hützen, Johannes Thomas, Andreas Lehrach +6
The generation of polarized particle beams still relies on conventional particle accelerators, which are typically very large in scale and budget. Concepts based on laser-driven wa…
Scaling laws for the (de-)polarization time of relativistic particle beams in strong fields
Johannes Thomas, Anna Hützen, Andreas Lehrach +5
The acceleration of polarized electrons and protons in strong laser and plasma fields is a very attractive option to obtain polarized beams in the GeV range. We investigate the fea…
Generalizing the Sokolov-Ternov effect for radiative polarization in intense laser fields
X. S. Geng, Z. G. Bu, Y. T. Wu +7
A consistent description of the radiative polarization for relativistic electrons in intense laser fields is derived by generalizing the Sokolov-Ternov effect in general field stru…
Driving positron beam acceleration with coherent transition radiation
Zhangli Xu, Longqing Yi, Baifei Shen +6
Positron acceleration in plasma wakefield faces significant challenges since the positron beam must be pre-generated and precisely coupled into the wakefield, and most critically,…
Polarized electron-beam acceleration driven by vortex laser pulses
Yitong Wu, Liangliang Ji, Xuesong Geng +15
We propose a new approach based on an all-optical set-up for generating relativistic polarized electron beams via vortex Laguerre-Gaussian (LG) laser-driven wakefield acceleration.…
Radiative deflection by spin effect in the quantum radiation-reaction regime
X. S. Geng, L. L. Ji, B. F. Shen +11
The colliding between ultra-relativistic electrons and an ultra-intense laser pulse is a powerful approach to testify the physics in strong-field QED regime. By considering spin-de…
Relativistic laser driven electron accelerator using micro-channel plasma targets
Joseph Snyder, Liangliang Ji, Kevin M. George +11
We present an experimental demonstration of the efficient acceleration of electrons beyond 60 MeV using micro-channel plasma targets. We employed a high-contrast, 2.5 J, 32 fs shor…
Quantum Reflection above the Classical Radiation-reaction Barrier in the QED Regime
X. S. Geng, L. L. Ji, B. F. Shen +5
The colliding between an ultra-intense laser pulse with a high energy electron beam is not only an important source for high-brightness gamma-rays but also a powerful approach to e…
Generation of Gamma-ray Beam with Orbital Angular Momentum in the QED Regime
Chen Liu, Baifei Shen, Xiaomei Zhang +8
We propose a scheme to generate gamma-ray photons with an orbital angular momentum (OAM) and high energy simultaneously from laser-plasma interactions by irradiating a circularly p…
Enhancement on Laser Intensity and Proton Acceleration Using Micro-tube Plasma Lens Targets
Joseph Snyder, Liangliang Ji, Kramer Akli
A hollow cylindrical micron-scale structure is proposed to enhance and manipulate the laser plasma interaction. It is shown through 3-D particle-in-cell simulations that the incide…