Experimental characterization of picosecond laser interaction with solid targets.
We have characterized the plasma produced by a picosecond laser pulse using x-ray spectroscopy. High-resolution high-sensitivity spectra of K -shell emission from a Ti plasma have been obtained, showing a strong contribution from multiply ionized ions. Hydrodynamic and collisional-radiative codes are used to extract the plasma temperature and density from these measurements. We show that our measurements can provide benchmarks for particle-in-cell (PIC) simulations of preplasma conditions in ultraintense laser-matter interactions.
Jung
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D
Central Laser Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, United Kingdom.
Gizzi
L A
LA
Labate
L
L
Neely
D
D
Notley
M M
MM
Rajeev
P P
PP
Roth
M
M
Gregori
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G