Abstract
The heating of solid targets irradiated by , 0.8 ps, wavelength laser light is studied by x-ray spectroscopy of the -shell emission from thin layers of Ni, Mo, and V. A surface layer is heated to with an axial temperature gradient of scale length. Images of Ni show the hot region has diameter. These data are consistent with collisional particle-in-cell simulations using preformed plasma density profiles from hydrodynamic modeling which show that the light pressure compresses the preformed plasma and drives a shock into the solid, heating a thin layer.
- Received 4 August 2007
DOI:https://doi.org/10.1103/PhysRevLett.100.165002
©2008 American Physical Society