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| VOLUME 83 | ISSUE 5 |
PAGE 246
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| Ion acceleration at the front and rear surfaces of thin foils with high intensity 40 fs laser pulses |
S. Ter-Avetisyan, P. V. Nickles
Max-Born-Institute, D-12489 Berlin, Germany
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PACS: 41.75.Jv, 52.38.Kd, 52.50.Im
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Abstract
Ion acceleration from the front and rear sides of a foil target is
observed by measurements of the ions' spectral and spatial emission
characteristics when irradiating the targets with ultra-short (40 fs)
high-intensity laser pulses. The experimental results show that the origin of
accelerated ions, both from the front and rear surfaces of the target,
strongly depend on the laser energy absorption mechanism. In particular,
laser pulse parameters, such as pulse duration and contrast, are crucial and
determine the entire acceleration scenario. Thus the experimental outcome can
be controlled by selection of the irradiation conditions.
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