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arXiv · 1711.02342

Sn ion energy distributions of ns- and ps-laser produced plasmas

Alex Bayerle·Mart Johan Deuzeman·Sjoerd van der Heijden·Dmitry Kurilovich·Tiago de Faria Pinto·Aneta Stodolna·Stefan Witte·Kjeld S. E. Eikema·Wim Ubachs·Ronnie Hoekstra·Oscar. O. Versolato
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Abstract

Ion energy distributions arising from laser-produced plasmas of Sn are measured over a wide laser parameter space. Planar-solid as well as liquid-droplet targets are exposed to infrared laser pulses with energy densities between 1J/cm$^2$ and 4kJ/cm$^2$ and durations spanning 0.5ps to 6ns. The measured ion energy distributions are compared to two self-similar solutions of a hydrodynamic approach assuming isothermal expansion of the plasma plume into vacuum. For planar and droplet targets exposed to ps-long pulses we find a good agreement between the experimental results and the self-similar solution of a semi-infinite simple planar plasma configuration with an exponential density profile. The ion energy distributions resulting from solid Sn exposed to ns-pulses agrees with solutions of a limited-mass model that assumes a Gaussian-shaped initial density profile.

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Alex Bayerle, Mart Johan Deuzeman, Sjoerd van der Heijden, Dmitry Kurilovich, Tiago de Faria Pinto, Aneta Stodolna, Stefan Witte, Kjeld S. E. Eikema, Wim Ubachs, Ronnie Hoekstra, Oscar. O. Versolato. 2018-03-08. Sn ion energy distributions of ns- and ps-laser produced plasmas. https://doi.org/10.1088/1361-6595%2Faab533

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