Preliminary Design of Laser-driven Ion Acceleration by Hybrid Scheme Using Dual-laser Pulses for NCU-100 TW Laser System

Keng-Ju Lee^1*, Yao-Li Liu¹, S. Isayama²

¹Institute of Space and Plasma Sciences, National Cheng Kung University, Tainan City 70101, Taiwan
²Department of Advanced Environmental Science and Engineering, Kyushu University, 6-1 Kasuga-Kohen, Kasuga, Fukuoka 816-8580, Japan

* Presenter:Keng-Ju Lee, email:la6111039@gs.ncku.edu.tw

We simulate laser-driven ion acceleration by hybrid scheme using dual-laser pulses proposed by Isayama, et. al on the basis of NCU-100 TW laser system. The targets are composed of a solid-density target and a near critical density target with a vacuum gap. The dual-laser pulses (1.5 J, 30 fs, W_FWHM =10) with a time-delay 170 fs interact with the targets generate 4.2-MeV proton energy. Generating 8 MeV proton energy is expected.

Keywords: Laser–plasma interaction, Laser-driven ion acceleration, particle-in-cell simulation