[FLASH-USERS] How Laser Break through the Target

[Zhang Shizheng]

Hi all,

   I am trying to simulate a single laser beam with energy 400 mJ illuminating a solid Al disc, of which the thickness is 0.8 um.




   (1) When the pulse is 4ps and the laser power is 10^11 W, the laser will break through the Al disc and a hole will appear

   (2) When the pulse is 0.4 ps and the laser power is 10^12 W, the disk will expand evenly and there will be no hole in the disc.




   In my opinion， the moment of light is only related to the energy, so the light in both (1) and (2) should break through the Altarget, what might cause the difference between these two results?  The .par file is in attachment, and I have changed nothing but pulse and laser power to get these two results, and the total energy is a constant 400 mJ. 





Best Wishes


Zhang Shizheng

PHD 

Xi'an Jiaotong University

Institute for Science and Technology of Laser and Particle Beams
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