Speaker
Description
A brief overview of ion emission results obtained in interaction experiments performed with short-wavelength laser pulses of a duration ranging from tens of femtoseconds to tens of nanoseconds will be presented. We compare the basic characteristics of ion emission generated by ultrashort pulses delivered by soft x-ray (FLASH2) and x-ray (European XFEL) free-electron lasers. For further comparison, short pulses from plasma-based XUV/UV lasers provide information on interactions that can no longer be considered isochoric. Finally, we will deal with isotope effects and cascade phenomena that occur during the emission of ions from a plasma generated by a focused beam of short-wavelength laser radiation.
Acknowledgements
The research presented in this contribution was supported by the Czech Republic’s Ministry of Education, Youth and Sports (project no. LM2023068).
References
J. Krása et al., "Ion emission from warm dense matter produced by irradiation with a soft x-ray free-electron laser," Matter and Radiation at Extremes, vol. 9, art. nr. 016602, 2024.
[1] J. Krása et al., "Revealing of hydrodynamic and electrostatic factors in the center-of-mass velocity of an expanding plasma generated by pulsed laser ablation," Laser and Particle Beams, vol. 29, pp. 113-119, 2011.
[2] L. Vyšín et al., "Behavior of poly(methyl methacrylate) exposed to extreme ultraviolet laser radiation: A relationship between the high-energy photo-decomposition of the polymer and the mass spectra of emitted ions," Polymer Degradation and Stability, vol. 236, art.nr. 111298, 2025.
[3] T. Burian et al., "Cascaded ion emissions from copper plasma produced by an X-ray free-electron laser," Matter and Radiation at Extremes, vol. 11, art. nr. 057601, 2026.