A5019009270- Laser-Plasma Interactions and Diagnostics
- Laser-Matter Interactions and Applications
- Advanced Fiber Laser Technologies
- Laser Material Processing Techniques
- Laser Design and Applications
- Spectroscopy and Quantum Chemical Studies
- Advanced Chemical Physics Studies
- Thin-Film Transistor Technologies
- Laser-induced spectroscopy and plasma
- Electron Spin Resonance Studies
- Organic Electronics and Photovoltaics
- Terahertz technology and applications
- Ocular and Laser Science Research
- Organic Light-Emitting Diodes Research
- Diamond and Carbon-based Materials Research
China Academy of Engineering Physics
2019-2024
Shenzhen Technology University
2021-2024
Shenzhen University
2021-2024
Fudan University
2019-2020
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2019
École Polytechnique
2019
Centre National de la Recherche Scientifique
2019
Laboratoire pour l'utilisation des lasers intenses
2019
Sorbonne Université
2019
Umeå University
2016
Exploring strategies to enhance reverse intersystem crossing (RISC) is of great significance develop efficient thermally activated delayed fluorescent (TADF) molecules. In this study, we investigate the substantial impact nonplanar structure on improving rate RISC (
Laser-generated plasma gratings are dynamic optical elements for the manipulation of coherent light at high intensities, beyond damage threshold solid-stated based materials. Their formation, evolution and final collapse require a detailed understanding. In this paper, we present model to explain nonlinear dynamics amplitude in spatially periodic ponderomotive potential generated by two identical counter-propagating lasers. Both, fluid kinetic aspects grating analyzed. It is shown that...
When a dynamic medium in which the laser propagates changes its refractive index time, frequency while keeping wavevector unchanged to fullfil dispersion relation. This is usually applied upshift with ionizing plasma. We propose an alternative technique modify light frequency. A transient plasma grating can be generated by two identical counterpropagating pulses via strongly coupled stimulated Brillouin scattering (SC SBS). The rapid evolution of affects wave-dispersion relation and band gap...
The use of plasmas provides a way to overcome the low damage threshold classical solid-state based optical materials, which is main limitation encountered in producing and manipulating intense energetic laser pulses. Plasmas can directly amplify or alter characteristics ultra-short pulses via three-wave coupling equations for parametric processes. strong-coupling regime Brillouin scattering (sc-SBS) particular interest: recent progress this domain presented here. This includes role global...
A quasi neutral plasma grating is considered which generated by two counter-propagating identical laser beams.Typical times scales associated with such are given tunit = mi/2Zme(kv0) -1 ,where v0 the electron quiver in field of wavevector k.In most situations behavior can be characterized a single parameter, µ, proportional to ratio background temperature square velocity.Indeed even for quasi-neutral gratings pressure might play an important role, adiabatic heating.The influence on formation...
We present an interesting approach named as pumping ionizing gating (PIG) for the generation of isolated attosecond pulses (IAPs). In this regime, a short laser is used to ionize preexisting gas grating, creating fast-extending plasma grating (FEPG) having ionization front propagating with velocity light. A low-intensity long counterpropagating pump pulse then reflected by very narrow region front, only where Bragg conditions resonant reflection satisfied. Consequently, confined within...
Slits have been widely used in laser–plasma interactions as plasma optical components for generating high-harmonic light and controlling laser-driven particle beams. Here, we propose demonstrate that periodic thin slits can be regarded a new breed of elements efficient focusing guiding intense laser pulse. The fundamental physics interaction with is studied, it revealed relativistic effects lead to enhanced far beyond the pure diffractive regime. In addition, an pulse makes feasible achieve...
We propose exploiting the superluminal plasma wake for coherent Cherenkov radiation by injecting a relativistic electron beam (REB) into with slowly varying density up-ramp. Using three-dimensional particle-in-cell and far-field time-domain simulations, we show that an isolated subcycle pulse is coherently emitted towards angle bubble-sheath electrons successively at rear of REB-induced wake. A theoretical model based on current dipole has been developed to interpret such radiation, agrees...
In wavefunction-based $\textit{ab-initio}$ quantum mechanical calculations, achieving absolute convergence with respect to the one-electron basis set is a long-standing challenge. this work, using random phase approximation (RPA) electron correlation energy as an example, we show how compute basis-error-free RPA for diatomic molecules by iteratively solving Sternheimer equations first-order wave functions in prolate spheroidal coordinate system. Our approach provides energies across periodic...