TY  - JOUR
A1  - Samsonova, Zhanna
A1  - Höfer, Sebastian
A1  - Hollinger, Richard
A1  - Kämpfer, Tino
A1  - Uschmann, Ingo
A1  - Röder, Robert
A1  - Trefflich, Lukas
A1  - Rosmej, Olga N.
A1  - Förster, Eckhart
A1  - Ronning, Carsten
A1  - Kartashov, Daniil
A1  - Spielmann, Christian
T1  - Hard x-ray generation from zno nanowire targets in a non-relativistic regime of laser-solid interactions
T2  - Applied Sciences
N2  - We present a detailed investigation of X-ray emission from both flat and nanowire zinc oxide targets irradiated by 60 fs 5 × 1016 W/cm2 intensity laser pulses at a 0.8 µm wavelength. It is shown that the fluence of the emitted hard X-ray radiation in the spectral range 150–800 keV is enhanced by at least one order of magnitude for nanowire targets compared to the emission from a flat surface, whereas the characteristic Kα line emission (8.64 keV) is insensitive to the target morphology. Furthermore, we provide evidence for a dramatic increase of the fast electron flux from the front side of the nanostructured targets. We suggest that targets with nanowire morphology may advance development of compact ultrafast X-ray sources with an enhanced flux of hard X-ray emission that could find wide applications in highenergy density (HED) physics.
KW  - X-ray generation
KW  - laser-matter interaction
KW  - ultrashort laser pulses
KW  - X-ray spectroscopy
KW  - laser plasma emission
KW  - nanostructured arrays
Y1  - 2018
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/51493
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-514935
SN  - 2076-3417
N1  - This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
VL  - 8
IS  - 10, Art. 1728
SP  - 1
EP  - 11
PB  - MDPI
CY  - Basel
ER  -