Numerical study of picosecond soft x-ray enhancement from porous targets irradiated by double laser pulses

作者：Fazeli R^*; Mandieh M H; Tallents G J

来源：Physics Letters A, 2010, 374(29): 2936-2941.

DOI：10.1016/j.physleta.2010.05.019

• Laser plasmas
• X-ray sources
• Porous target
• Laser prepulse

Simulations show enhanced free-free and free-bound x-ray emission from laser-produced plasmas for both porous and solid targets irradiated by picosecond laser pulses under different prepulse conditions. The porous targets are modeled as a thick solid substrate over-coated with a thin porous layer. Using porous targets and prepulses shows that x-ray yields can be enhanced significantly over single pulses on solid density targets. The optimum conditions of prepulse and porous layer density are investigated by simulations with a fluid and atomic physics code.

• 出版日期2010-6-28