Mainz 2022 – wissenschaftliches Programm
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P: Fachverband Plasmaphysik
P 3: Laser Plasmas I
P 3.3: Vortrag
Montag, 28. März 2022, 14:30–14:45, P-H12
Investigation of laser reflectivity and transmissivity of laser-plasma interaction with thin foil targets — •Marvin E. P. Umlandt1,2, Tim Ziegler1,2, Constantin Bernert1,2, Marco Garten1,2, Lennart Gaus1,2, Ilja Göthel1,2, Thomas Kluge1, Stephan Kraft1, Florian Kroll1, Josefine Metzkes-Ng1, Irene Prencipe1, Martin Rehwald1,2, Marvin Reimold1,2, Hans-Peter Schlenvoigt1, Milenko Vescovi1,2, Karl Zeil1, and Ulrich Schramm1,2 — 1Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany — 2Technische Universität Dresden, 01062 Dresden, Germany
Ion acceleration by compact laser-plasma sources promises a variety of applications ranging from medical relevance to fusion experiments. Reaching the required beam quality parameters for those applications demands a very high level of understanding and control over the laser-plasma interaction process. Central components in this context are the absorption of the electromagnetic laser field by the plasma and the quality of the resulting acceleration field structure.
Measuring and analyzing unabsorbed light - as transmitted and/or specularly reflected parts - thus allows insight into properties of the underlying laser-plasma interaction. We experimentally investigate these interactions for high and low-contrast laser pulses with thin solid density foil targets at the Draco PW laser system (HZDR). The results of spectral, spatial, and energy analysis of transmitted and reflected light indicate changes in the plasma interaction and will be presented.