Speaker
Xiaohui Yuan
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P4.2007.pdf
NCD plasma dynamics driven by ultraintense femtosecond laser pulse
X.H. Yuan1, 2, *, Y.Q. Deng1, 2, N. Haq1, 2, D.N. Yue1, 2, X.L. Ge1, 2, W.Q. Wei1, 2, Y.J. Li1, 2,
X. Zhao1, 2, F. Liu1, 2, M. Chen1, 2, L.M. Chen1, 2,3, Z.M. Sheng1, 2, 4 and J. Zhang1, 2
1
Key Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai
Jiao Tong University, Shanghai 200240, China
2
Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University,
Shanghai 200240, China
3
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese
Academy of Sciences, Beijing 100190, China
4
SUPA, Department of Physics, University of Strathclyde, Glasgow G4 0NG, UK
Email: xiaohui.yuan@sjtu.edu.cn
High-density gas-jet target has superior advantages in laser-driven particle and radiation
sources development. The near-critical-density gas is especially attractive for both ion
acceleration and high-brilliance Betatron x-ray generation due to highly efficient laser
absorption and a variety of nonlinear coherent structures. In this talk, I will present our
experimental work on the spatiotemporal evolution of near-critical-density gas-plasma
produced by high-contrast relativistically intense femtosecond laser pulses with helium gas
jet of peak atom density of 8x1020 cm-3. The underlying physics will be discussed with the
help of 2D and 3D particle-in-cell simulations.
Figure 1 Typical plasma structure detected with second-harmonic optical probe
References:
F. Sylla, etc. Short Intense Laser Pulse Collapse in Near-Critical Plasma. Phys. Rev. Lett. 110, 085001 (2013)
F. Sylla, etc. Anticorrelation between Ion Acceleration and Nonlinear Coherent Structures from
Laser-Underdense Plasma Interaction. Phys. Rev. Lett, 108, 115003 (2012)
