Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Article number | 123101 |
---|---|
<mark>Journal publication date</mark> | 12/2006 |
<mark>Journal</mark> | Physics of Plasmas |
Issue number | 12 |
Volume | 13 |
Number of pages | 5 |
Publication Status | Published |
<mark>Original language</mark> | English |
Reduction of proton acceleration in the interaction of a high-intensity, picosecond laser with a 50-mu m aluminum target was observed when 0.1-6 mu m of plastic was deposited on the back surface (opposite side of the laser). The maximum energy and number of energetic protons observed at the back of the target were greatly reduced in comparison to pure aluminum and plastic targets of the same thickness. This is attributed to the effect of the interface between the layers. Modeling of the electron propagation in the targets using a hybrid code showed strong magnetic-field generation at the interface and rapid surface heating of the aluminum layer, which may account for the results. (c) 2006 American Institute of Physics.