Correlation of highly charged ion and X-ray emissions from the laser-produced plasma in the presence of non-linear phenomena

Láska, L.; Ryć, L.; Badziak, J.; Boody, F.P.; Gammino, S.; Jungwirth, K.; Krása, J.; Krouský, E.; Mezzasalma, A. M.; Parys, P.; Pfeifer, M.; Rohlena, K.; Torrisi, L.; Ullschmied, J.; Wołowski, J.

doi:10.1080/10420150500492669

Cited by 17 publications

(7 citation statements)

References 27 publications

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“…Assuming, as a first approximation, that the maximum charge state increases linearly with the laser intensity, in agreement with literature data (Laska et al, 2005b, the maximum charge increment from Au 44þ up to Au 56þ , can be correlated to an increment of the laser intensity. (3) indicating that the spot area is inversely proportional to the laser intensity.…”

Section: Discussionsupporting

confidence: 90%

Self-focusing effect in Au-target induced by high power pulsed laser at PALS

et al. 2008

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Self-focusing effects, induced by ASTERIX pulsed laser at PALS Laboratory of Prague, have been investigated. Laser was employed at the third harmonics (438 nm) and intensities of the order of 10 16 W/cm 2 . Pure Au was used as thin target and irradiated with 308 incidence angle. An ion energy analyzer was employed to detect the energy-to-mass ratio of emitted ions from plasma. Measurements were performed by changing the focal point position with a high spatial resolution stepmotor. Results demonstrated that non linear processes, due to self-focusing effects, occurs when the laser beam is focused at about 200 mm in front of the target surface. In such conditions, a new ion group, having high charge state and kinetic energy, is produced because of the increment in temperature of the laser-generated plasma.

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Section: Discussionsupporting

confidence: 90%

Self-focusing effect in Au-target induced by high power pulsed laser at PALS

et al. 2008

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“…The plot indicates that the maximum proton energy is obtained at about +50 μm instead of 0° and that the dependence on the focal position is not symmetric around to the maximum ion acceleration. Such results are in good agreement with similar data reported in the literature …”

Section: Resultssupporting

confidence: 94%

Ion acceleration from aluminium plasma generated by a femtosecond laser in different conditions

Torrisi

Rosiński

Terwińska

et al. 2020

Contributions to Plasma Physics

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Non-equilibrium plasma was obtained by irradiating Al foils in vacuum with a femtosecond (fs) laser at intensities of the order of 10 18 W/cm 2 . Protons and other light ions were accelerated in the forward direction by using the target-normal-sheath acceleration regime. Time-of-flight technique was employed to measure the ions' kinetic energy using SiC detectors placed at known distances and angles. The ion acceleration was monitored under different conditions of laser focal position, laser pulse energy, and laser contrast. The target was irradiated using different thicknesses and anti-reflecting graphene films. By optimizing the laser parameters, irradiation conditions, and target properties, it was possible to accelerate up to 2.3 MeV per charge state, as will be presented and discussed.

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“…Significant asymmetry of various dependencies (maximum ion charge states, minimum crater diameters, X-ray radiation, etc.) was found with regard to the nominal maximum laser intensity (at F P = 0), [4,17,23,26]. The experiments proved that at laser intensities above ∼ 10 14 W/cm 2 , conditions for the occurrence of various nonlinear processes in laser produced plasma, including self-focusing of the laser beam, are met.…”

Section: Discussionmentioning

confidence: 75%

Experimental studies of interaction of intense long laser pulse with a laser-created Ta plasma

et al. 2006

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Characteristics of ions, emitted from the laser produced plasma, were systematically investigated using high power iodine laser system PALS, operating at 3 ω. A Ta target was irradiated perpendicularly with laser pulse energy 150 J. Changing the laser focus position, not only the laser intensity, but also the length (duration) of laser beam interaction with pre-formed plasma is changing. Self-focusing of laser beam in self-created plasma was proved, moreover with longitudinal structure with a period of ∼ 200 µm.

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Correlation of highly charged ion and X-ray emissions from the laser-produced plasma in the presence of non-linear phenomena

Cited by 17 publications

References 27 publications

Self-focusing effect in Au-target induced by high power pulsed laser at PALS

Self-focusing effect in Au-target induced by high power pulsed laser at PALS

Ion acceleration from aluminium plasma generated by a femtosecond laser in different conditions

Experimental studies of interaction of intense long laser pulse with a laser-created Ta plasma

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