Experimental characterization of picosecond laser interaction with solid targets

D. Jung, L. A. Gizzi, L. Labate, D. Neely, M. M. Notley, P. P. Rajeev, M. Roth, and G. Gregori

Phys. Rev. E 77, 056403 – Published 8 May 2008

Abstract

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.

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Received 21 September 2007

DOI:https://doi.org/10.1103/PhysRevE.77.056403

Authors & Affiliations

D. Jung^1,2, L. A. Gizzi³, L. Labate³, D. Neely¹, M. M. Notley¹, P. P. Rajeev¹, M. Roth², and G. Gregori^1,4,*

¹Central Laser Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, United Kingdom
²Institut für Kernphysik, Technische Universität Darmstadt, Schloßgartenstrasse 9, 64289 Darmstadt, Germany
³ILIL-IPCF, Consiglio Nazionale delle Ricerche, Area della Ricerca del CNR, Via G. Moruzzi, 1-56124 Pisa, Italy
⁴Clarendon Laboratory, University of Oxford, Oxford, OX1 3PU, United Kingdom

^*G.Gregori@rl.ac.uk

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Vol. 77, Iss. 5 — May 2008

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