Dynamics of relativistic laser-plasma interaction on solid targets

Autor: C. D. Chen, Laurent Divol, Anthony Link, Richard B. Stephens, M. H. Key, Harry McLean, G E Kemp, Hiroshi Sawada, B. Westover, Richard R. Freeman, Scott Wilks, D. S. Hey, Leonard Jarrott, David Turnbull, Farhat Beg, Drew Higginson, Andreas Kemp, S. Chawla, Kramer Akli, P. K. Patel, Yuan Ping
Rok vydání: 2011
Předmět:
Zdroj: Physical review letters. 109(14)
ISSN: 1079-7114
Popis: A novel time-resolved diagnostic is used to record the critical surface motion during picosecond-scale relativistic laser interaction with a solid target. Single-shot measurements of the specular light show a redshift decreasing with time during the interaction, corresponding to a slowing-down of the hole boring process into overdense plasma. On-shot full characterization of the laser pulse enables simulations of the experiment without any free parameters. Two-dimensional particle-in-cell simulations yield redshifts that agree with the data, and support a simple explanation of the slowing-down of the critical surface based on momentum conservation between ions and reflected laser light.
Databáze: OpenAIRE