Speaker
Joel Magnusson
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P2.2017.pdf
Laser-driven ion acceleration through controlled motion of electrons by
standing waves
J. Magnusson1 , F. Mackenroth1,2 , M. Marklund1 , A. Gonoskov1,3,4
1 Department of Physics, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
2 Max Planck Institute for the Physics of Complex Systems, 01187 Dresden, Germany
3 Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod 603950, Russia
4 Lobachevsky State University of Nizhni Novgorod, Nizhny Novgorod 603950, Russia
The generation of high-energy ions via the interaction of high-intensity femtosecond laser
pulses with various targets provides a promising basis for a new kind of compact ion sources,
with numerous applications in medicine, industry and science. Over the last couple of decades,
extensive theoretical and experimental studies have made it possible to identify several favour-
able interaction regimes and has led to the development of related acceleration schemes. Many
of these schemes, however, inherently lack well-controlled acceleration stages and thus provide
only limited opportunities for a controlled generation of a well-collimated, high-charge beam
of ions and with a given energy.
In an effort to alleviate this problem, it was recently proposed that the ions can be dragged
by an electron bunch trapped in a controllably moving potential well formed by laser radia-
tion. Such standing-wave acceleration (SWA) can be achieved through reflection of a chirped
laser pulse from a mirror, which has been formulated as the concept of chirped-standing-wave
acceleration (CSWA) [1].
In this contribution we further analyze general feasibility aspects of the SWA approach
and demonstrate its reasonable robustness against field structure imperfections, such as those
caused by misalignment, elliptical polarization and limited contrast. Using this we also identify
prospects and limitations of the CSWA concept [2].
References
[1] F. Mackenroth, A. Gonoskov, and M. Marklund, Phys. Rev. Lett. 117, 104801 (2016).
[2] J. Magnusson, F. Mackenroth, M. Marklund, and A. Gonoskov, arXiv:1801.06394.
