Professor Justin Wark: Publications

Measurement of the dynamic response of compressed hydrogen by inelastic X-ray scattering

Journal of Physics Conference Series IOP Publishing 244:4 (2010) 042014

Authors:

K Falk, AP Jephcoat, BJB Crowley, RR Fäustlin, C Fortmann, FY Khattak, AK Kleppe, D Riley, S Toleikis, J Wark, H Wilhelm, G Gregori

Nanosecond x-ray Laue diffraction apparatus suitable for laser shock compression experiments

Review of Scientific Instruments AIP Publishing 81:8 (2010) 083902

Authors:

Matthew Suggit, Giles Kimminau, James Hawreliak, Bruce Remington, Nigel Park, Justin Wark

XUV emission from autoionizing hole states induced by intense XUV-FEL at intensities up to 1017 W/cm2

Journal of Physics Conference Series IOP Publishing 244:4 (2010) 042028

Authors:

FB Rosmej, E Galtier, D Riley, T Dzelzainis, P Heinmann, FY Khattak, RW Lee, B Nagler, A Nelson, T Tschentscher, SM Vinko, T Whitcher, S Toleikis, R Fäustlin, R Soberierski, L Juha, M Fajardo, JS Wark, J Chalupsky, V Hajkova, J Krzywinski, M Jurek, M Kozlova

X-ray laser peels and cores atoms

Nature Springer Nature 466:7302 (2010) 35-36

Electronic structure of an XUV photogenerated solid-density aluminum plasma.

Phys Rev Lett 104:22 (2010) 225001

Authors:

SM Vinko, U Zastrau, S Mazevet, J Andreasson, S Bajt, T Burian, J Chalupsky, HN Chapman, J Cihelka, D Doria, T Döppner, S Düsterer, T Dzelzainis, RR Fäustlin, C Fortmann, E Förster, E Galtier, SH Glenzer, S Göde, G Gregori, J Hajdu, V Hajkova, PA Heimann, R Irsig, L Juha, M Jurek, J Krzywinski, T Laarmann, HJ Lee, RW Lee, B Li, K-H Meiwes-Broer, JP Mithen, B Nagler, AJ Nelson, A Przystawik, R Redmer, D Riley, F Rosmej, R Sobierajski, F Tavella, R Thiele, J Tiggesbäumker, S Toleikis, T Tschentscher, L Vysin, TJ Whitcher, S White, JS Wark

Abstract:

By use of high intensity XUV radiation from the FLASH free-electron laser at DESY, we have created highly excited exotic states of matter in solid-density aluminum samples. The XUV intensity is sufficiently high to excite an inner-shell electron from a large fraction of the atoms in the focal region. We show that soft-x-ray emission spectroscopy measurements reveal the electronic temperature and density of this highly excited system immediately after the excitation pulse, with detailed calculations of the electronic structure, based on finite-temperature density functional theory, in good agreement with the experimental results.

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