Numerical study of picosecond soft x-ray enhancement from porous targets irradiated by double laser pulses |
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Authors: | R Fazeli MH Mahdieh |
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Institution: | a Department of Physics, Iran University of Science and Technology, Narmak, Tehran, Iran b Department of Physics, University of York, York YO10 5DD, United Kingdom |
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Abstract: | 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. |
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Keywords: | Laser plasmas X-ray sources Porous target Laser prepulse |
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