| Literature DB >> 18518211 |
K U Akli1, S B Hansen, A J Kemp, R R Freeman, F N Beg, D C Clark, S D Chen, D Hey, S P Hatchett, K Highbarger, E Giraldez, J S Green, G Gregori, K L Lancaster, T Ma, A J MacKinnon, P Norreys, N Patel, J Pasley, C Shearer, R B Stephens, C Stoeckl, M Storm, W Theobald, L D Van Woerkom, R Weber, M H Key.
Abstract
The heating of solid targets irradiated by 5 x 10(20) W cm(-2), 0.8 ps, 1.05 microm wavelength laser light is studied by x-ray spectroscopy of the K-shell emission from thin layers of Ni, Mo, and V. A surface layer is heated to approximately 5 keV with an axial temperature gradient of 0.6 microm scale length. Images of Ni Ly(alpha) show the hot region has <or=25 microm diameter. These data are consistent with collisional particle-in-cell simulations using preformed plasma density profiles from hydrodynamic modeling which show that the >100 G bar light pressure compresses the preformed plasma and drives a shock into the solid, heating a thin layer.Year: 2008 PMID： 18518211 DOI： 10.1103/PhysRevLett.100.165002
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161