Z. M. Sheng
YOU?
Author Swipe
View article: Reconstruction of magnetic field distributions from proton radiography by deep learning
Reconstruction of magnetic field distributions from proton radiography by deep learning Open
Proton radiography is an effective technique for diagnosing field distributions in plasmas. However, due to the complexity of electromagnetic field structures, reconstructing electromagnetic fields from proton radiographs is extremely chal…
View article: Effects of initial spin orientation on the generation of polarized electron beams from laser wakefield acceleration in plasma
Effects of initial spin orientation on the generation of polarized electron beams from laser wakefield acceleration in plasma Open
The effects of initial spin orientation on the final electron beam polarization in laser wakefield acceleration in a pre-polarized plasma are investigated theoretically and numerically. From the results of variation of the initial spin dir…
View article: Acceleration of Ultrahigh Energy Particles from Fast Radio Bursts
Acceleration of Ultrahigh Energy Particles from Fast Radio Bursts Open
Two extreme events in the universe, fast radio bursts (FRBs) and cosmic rays (CRs), could be corelated, where FRBs with extreme field strength near their sources may contribute to CRs. This study investigates localized particle acceleratio…
View article: Cherenkov-type coherent radiation from laser wakefields driven in nonuniform plasma
Cherenkov-type coherent radiation from laser wakefields driven in nonuniform plasma Open
The evolution of the laser wakefields driven in a plasma slab with a longitudinal up-ramp density profile and the associated radiation are investigated theoretically and numerically by using two-dimensional particle-in-cell simulations. Th…
View article: Research on the principal reservoir architecture of lacustrine delta-front: A case from the second member 7-8 sand groups of Shahejie formation (Es<sub>2</sub> <sup>7</sup>-Es<sub>2</sub> <sup>8</sup>) in Liang 60 fault block
Research on the principal reservoir architecture of lacustrine delta-front: A case from the second member 7-8 sand groups of Shahejie formation (Es<sub>2</sub> <sup>7</sup>-Es<sub>2</sub> <sup>8</sup>) in Liang 60 fault block Open
This paper employs techniques for reservoir architecture characterization, focusing on the Liang 60 fault block in the central uplift of the Dongying Sag. It meticulously characterizes the internal structure of the principal reservoir in t…
View article: Isolated attosecond pulse from a solid target driven by two laser pulses
Isolated attosecond pulse from a solid target driven by two laser pulses Open
Isolated attosecond pulses provide unique opportunities for probing ultrafast electron dynamics in atoms and molecules, making them a powerful tool in ultrafast metrology due to their high temporal resolution. In this paper, we propose an …
View article: Generation of high power spatially-structured laser pulses via forward Raman amplification in plasma
Generation of high power spatially-structured laser pulses via forward Raman amplification in plasma Open
Spatially-structured light with tunable intensity, wavelength, and spatiotemporal profiles has demonstrated significant potentials for fundamental and applied science, including the ultrafast and high-field physics. Nevertheless, the gener…
View article: Photon-polarization-resolved linear Breit–Wheeler pair production in a laser-plasma system
Photon-polarization-resolved linear Breit–Wheeler pair production in a laser-plasma system Open
The linear Breit–Wheeler (LBW) process—the production of an electron–positron pair through the collision of two high-energy photons—can emerge as the dominant pair production mechanism in the ultraintense laser-plasma interaction for laser…
View article: Wakefield generation and electron acceleration driven by a spatiotemporal vortex in plasma
Wakefield generation and electron acceleration driven by a spatiotemporal vortex in plasma Open
A laser pulse with a spatiotemporal optical vortex (STOV) structure exhibits a spiral phase in the spatiotemporal plane. Consequently, the pulse has an inhomogeneous transverse phase velocity distribution in phase space and carries transve…
View article: Reconnection of magnetic flux ropes driven by two-color Laguerre–Gaussian laser pulses in plasma
Reconnection of magnetic flux ropes driven by two-color Laguerre–Gaussian laser pulses in plasma Open
The generation and reconnection of magnetic flux ropes in a plasma irradiated by two Laguerre–Gaussian laser pulses with different frequencies and opposite topological charges are investigated numerically by particle-in-cell simulations. I…
View article: In situ axion generation and detection in laser-driven wakefields
In situ axion generation and detection in laser-driven wakefields Open
We propose a laser-plasma wakefield based schemes for in situ axion generation and detection through the Primakoff process. Strong electromagnetic fields ($\gtrsim 10^{9}\,$V/cm) in the wakefield enhance axion production rates by orders of…
View article: Inverse Opal Torus‐Shaped Photonic Microobjects with Superior Stimulus‐Responsive Properties to Their Spherical Equivalents
Inverse Opal Torus‐Shaped Photonic Microobjects with Superior Stimulus‐Responsive Properties to Their Spherical Equivalents Open
Because of their many uses and simplicity of manufacture, colloidal photonic microobjects made from droplet templates have been the subject of extensive research. Owing to the low interfacial energy, the majority are spherical, however non…
View article: Terahertz vortices with tunable topological charges from a laser–plasma channel
Terahertz vortices with tunable topological charges from a laser–plasma channel Open
View article: Effects of initial spin orientation on the generation of polarized electron beams from laser wakefield acceleration in plasma
Effects of initial spin orientation on the generation of polarized electron beams from laser wakefield acceleration in plasma Open
The effects of the initial spin orientation on the final electron beam polarization via laser wakefield acceleration in pre-polarized plasma are investigated theoretically and numerically. From a variation of the initial spin direction, th…
View article: Towards the generation of petawatt near-infrared few-cycle light pulses via forward Raman amplification in plasma
Towards the generation of petawatt near-infrared few-cycle light pulses via forward Raman amplification in plasma Open
Light amplification towards extremely high power in the infrared regime remains a significant challenge due to the lack of suitable gain media. Here we propose a new scheme to amplify a laser pulse with tunable wavelengths towards extremel…
View article: Innovative Techno-Economic Optimization and Evaluation of Co2 Capture: A Novel Approach to Energy Efficiency and Cost Reduction
Innovative Techno-Economic Optimization and Evaluation of Co2 Capture: A Novel Approach to Energy Efficiency and Cost Reduction Open
View article: Generation of relativistic polarized electron beams via collective beam-target interactions
Generation of relativistic polarized electron beams via collective beam-target interactions Open
Relativistic polarized electron beams can find applications in broad areas of fundamental physics. Here, we propose that electron spin polarization can be realized efficiently via collective beam-target interactions. When a relativistic un…
View article: High-efficiency fast pinching radiation of electron beams in nonuniform plasma
High-efficiency fast pinching radiation of electron beams in nonuniform plasma Open
The continuous development of bright x/gamma-ray sources has opened up new frontiers of science and advanced applications. Currently, there is still a lack of efficient approaches to produce gamma-rays with photon energies up to GeV and wi…
View article: Nano-ridge plasmonic structural colors fabricated by roll-to-roll hot-embossing
Nano-ridge plasmonic structural colors fabricated by roll-to-roll hot-embossing Open
Structural colors are now applied in many areas, like traceable anti-counterfeiting and wearable technologies, due to their durability and wide color gamut. However, the large-scale deployment of structural colors has been limited by the c…
View article: Role of nonlocal heat transport on the laser ablative Rayleigh-Taylor instability
Role of nonlocal heat transport on the laser ablative Rayleigh-Taylor instability Open
Ablative Rayleigh–Taylor instability (ARTI) and nonlocal heat transport are the critical problems in laser-driven inertial confinement fusion, while their coupling with each other is not completely understood yet. Here the ARTI in the pres…
View article: Modeling of axion and electromagnetic fields interaction in particle-in-cell simulations
Modeling of axion and electromagnetic fields interaction in particle-in-cell simulations Open
The axion, a theoretically well-motivated particle, has been searched for extensively via its hypothetical interactions with ordinary matter and fields. Recently, a new axion detection approach has been considered utilizing the ultra-inten…
View article: Two-plasmon-decay instability in the non-eigenmode regime in laser–plasma interaction
Two-plasmon-decay instability in the non-eigenmode regime in laser–plasma interaction Open
It is shown theoretically that the two-plasmon-decay instability (TPD) in laser–plasma interaction can be excited in the non-eigenmode regime, where the plasma density is larger than the quarter critical density. This appears when the lase…
View article: Generation of relativistic polarized electron beams via collective beam-target interactions
Generation of relativistic polarized electron beams via collective beam-target interactions Open
Relativistic polarized electron beams can find applications in broad areas of fundamental physics. Here, we propose for the first time that electron spin polarization can be realized efficiently via collective beam-target interactions. Whe…
View article: Enhanced terahertz radiation generated by intense laser interaction with a two-layer thin solid target
Enhanced terahertz radiation generated by intense laser interaction with a two-layer thin solid target Open
A terahertz radiation enhancing scheme, in which a linearly polarized weakly relativistic laser pulse irradiates a target consisting of two parallel thin-solid layers with a certain gap, is proposed and studied by using two-dimensional par…
View article: Numerical studies of collinear laser-assisted injection from a foil for plasma wakefield accelerators
Numerical studies of collinear laser-assisted injection from a foil for plasma wakefield accelerators Open
We present a laser-assisted electron injection scheme for beam-driven plasma wakefield acceleration. The laser is collinear with the driver and triggers the injection of hot electrons into the plasma wake by interaction with a thin solid t…
View article: Compact ultrafast neutron sources via bulk acceleration of deuteron ions in an optical trap
Compact ultrafast neutron sources via bulk acceleration of deuteron ions in an optical trap Open
A scheme for a quasi-monoenergetic high-flux neutron source with femtosecond duration and highly anisotropic angular distribution is proposed. This scheme is based on bulk acceleration of deuteron ions in an optical trap or density grating…
View article: Modeling of axion and electromagnetic fields coupling in a particle-in-cell code
Modeling of axion and electromagnetic fields coupling in a particle-in-cell code Open
Axions have aroused widespread research interest because they can solve the strong CP problem and serve as a possible candidate for dark matter. Currently, people have explored a lot of axion detection experiments, including passively dete…
View article: Revisit of electron temperature effect on stimulated Brillouin scattering in homogenous plasma
Revisit of electron temperature effect on stimulated Brillouin scattering in homogenous plasma Open
Stimulated Brillouin scattering (SBS) has complex dependence on the plasma electron temperature via the Landau damping, particle trapping, and consequent nonlinear frequency shift. It is found from our numerical simulation that the SBS ref…
View article: Bright X/$$\gamma$$-ray emission and lepton pair production by strong laser fields: a review
Bright X/$$\gamma$$-ray emission and lepton pair production by strong laser fields: a review Open
The advent of high-power ultra-short laser pulses opens up new frontiers of relativistic non-linear optics, high energy density physics and laboratory astrophysics. As the laser electric field in the particle rest frame approaches the Schw…
View article: Laboratory-scale Perpendicular Collisionless Shock Generation and Ion Acceleration in Magnetized Head-on Colliding Plasmas
Laboratory-scale Perpendicular Collisionless Shock Generation and Ion Acceleration in Magnetized Head-on Colliding Plasmas Open
Magnetized collisionless shocks drive particle acceleration broadly in space and astrophysics. We perform the first large-scale particle-in-cell simulations with realistic laboratory parameters (density, temperature, and velocity) to inves…