Relativistic laser interaction with solids and its probing with advanced light sources
The interaction of ultra-intense lasers with solids creates extreme states of matter: dense, hot, non-equilibrium transient plasmas.
Their application to some of the most exciting and important questions - How can we produce enough sustainable energy? How can treat cancer better and make the best treatments available for everybody? How do plasmas form and behave in the extreme conditions of distant space objects? - can give new and surprising answers. We study how to accelerate ions with two of the most powerful lasers ever constructed, how to heat plasmas hot enough to fuse atoms and generate the energy we all need to power our modern live and simulate plasma flows and instabilities in astrophysical jets to learn more about our universe.
We use the most advanced computing codes (PIConGPU), most powerful supercomputers (HYPNOS, TITAN and others) and search for patterns, laws and sometimes find surprisingly simple explanations of the wonderful physics that is seen in laser plasma experiments.
T. Kluge, J. Metzkes, K. Zeil, M. Bussmann, U. Schramm, and T.E. Cowan, "Two surface plasmon decay of plasma oscillations", Phys. Plasmas 22, 064502 (2015)
J. Metzkes, T. Kluge, K. Zeil, M. Bussmann, S.D. Kraft, T.E. Cowan, and U. Schramm, "Experimental observation of transverse modulations in laser-driven proton beams", New J. Phys. 16, 023008 (2014).
M. Bussmann, H. Burau, T.E. Cowan, A. Debus, A. Huebl, G. Juckeland, T. Kluge, W.E. Nagel, R. Pausch, F. Schmitt, U. Schramm, J. Schuchart, and R. Widera, "Radiative Signatures of the Relativistic Kelvin-Helmholtz Instability", in Proc. SC13 Int. Conf. High Perform. Comput. Networking, Storage Anal. (ACM, New York, NY, USA, 2013), p. 5:1.
T. Kluge, S. A. Gaillard, K. A. Flippo, T. Burris-Mog, W. Enghardt, B. Gall, M. Geissel, a Helm, S.D. Kraft, T. Lockard, J. Metzkes, D.T. Offermann, M. Schollmeier, U. Schramm, K. Zeil, M. Bussmann, and T.E. Cowan, "High proton energies from cone targets: electron acceleration mechanisms",New J. Phys. 14, 23038 (2012).
T. Kluge, T. Cowan, A. Debus, U. Schramm, K. Zeil, and M. Bussmann, "Electron Temperature Scaling in Laser Interaction with Solids", Phys. Rev. Lett. 107, 205003 (2011).
T. Kluge, W. Enghardt, S.D. Kraft, U. Schramm, K. Zeil, T.E. Cowan, and M. Bussmann, "Enhanced laser ion acceleration from mass-limited foils", Phys. Plasmas 17, 123103 (2010).
Probing of relativistic laser interaction with advanced light sources
|SAXS @ XFEL|
|Foto: Thomas Kluge|
We proposed and developed a novel approach to obtain unprecedented insight in dense and relativistic plasmas. Currently, experiments rely on intensive and complex simulations to interpret results and verify deduced explanations and models. We aim to turn that around and will soon be able to do ultra-short snapshots of the interior of dense laser-heted plasmas using X-ray pulses. In the future, combining the world's most intense optical lasers and most advanced X-ray sources - X-ray free electron lasers - at European XFEL (HIBEF) will give detailed information that for the first time would allow a direct glimpse on the femtosecond, nanoscale plasma physics involved in ultra-short ultra-intense laser-solid interaction. Then, experiments could be used to benchmark our simulations and numerical models and eventually drive their predictive capabilities further.
T. Kluge, M. Bussmann, H.-K. Chung, C. Gutt, L. G. Huang, M. Zacharias, U. Schramm, and T. E. Cowan, "Nanoscale femtosecond imaging of transient hot solid density plasmas with elemental and charge state sensitivity using resonant coherent diffraction", ArXiv, 1508.03988 (2015).
T. Kluge, C. Gutt, L.G. Huang, J. Metzkes, U. Schramm, M. Bussmann, and T.E. Cowan, "Using X-ray free-electron lasers for probing of complex interaction dynamics of ultra-intense lasers with solid matter", Phys. Plasmas 21, 033110 (2014).
The SAXS experiment has been granted beamtime on LCLS (SLAC, USA).
Information for colaborators can be found here