Abstract
Ion acceleration resulting from the interaction of ultra-high intensity (2 x 10(20) W/cm(2)) and ultra-high contrast (similar to 10(10)) laser pulses with 0.05-10 mu m thick Al foils at normal (0 degrees) and 35 degrees laser incidence is investigated. When decreasing the target thickness from 10 mu m down to 0.05 mu m, the accelerated ions become less divergent and the ion flux increases, particularly at normal (0 degrees) laser incidence on the target. A laser energy conversion into protons of,similar to 6.5% is estimated at 35 degrees laser incidence. Experimental results are in reasonable agreement with theoretical estimates and can be a benchmark for further theoretical and computational work.
Original language | English |
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Article number | 121504 |
Number of pages | 1 |
Journal | Applied Physics Letters |
Volume | 99 |
Issue number | 12 |
DOIs | |
Publication status | Published - 19 Sept 2011 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)