Laser irradiations of advanced targets promoting absorption resonance for ion acceleration in TNSA regime

Advanced targets based on Au nanoparticles embedded in polymers films show high absorption coefficient in the UV–visible and infrared region. They can be employed to enhance the proton and ion acceleration from the laser-generated plasma in TNSA regime. In conditions of “p” polarized laser irradiati...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2015-07, Vol.355, p.221-226
Main Authors: Torrisi, L., Calcagno, L., Giulietti, D., Cutroneo, M., Zimbone, M., Skala, J.
Format: Article
Language:English
Subjects:
Acceleration
Detectors
Gold
Ion acceleration in plasma
Irradiation
Laser-generated plasma
Lasers
Nanoparticles
Polymers
Silicon carbide
TNSA regime
“p”-polarization
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Summary:Advanced targets based on Au nanoparticles embedded in polymers films show high absorption coefficient in the UV–visible and infrared region. They can be employed to enhance the proton and ion acceleration from the laser-generated plasma in TNSA regime. In conditions of “p” polarized laser irradiations at 1015W/cm2 intensity, in these films can be induced resonant absorption due to plasma wave excitation. Plasma on-line diagnostics is based on SiC detectors, Thomson spectrometry and X-ray streak camera imaging. Measurements of kinetic energy of accelerated ions indicate a significant increment using polymer targets containing gold nanoparticles and “p” polarized laser light with respect to pure polymers and unpolarized light irradiation.
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2015.01.019