Author :
Pasley, J. ; Wei, M. ; Shipton, E. ; Chen, S. ; Ma, T. ; Beg, F.N. ; Alexander, N. ; Stephens, R. ; MacPhee, A.G. ; Hey, D. ; Le Pape, S. ; Patel, P. ; Mackinnon, A. ; Key, M. ; Offermann, D. ; Link, A. ; Chowdhury, E. ; Van Woerkom, L. ; Freeman, R.R.
Abstract :
The interaction of ultrahigh power picosecond laser pulses with solid targets is of interest both for benchmarking the results of hybrid particle in cell codes and also for applications in reentrant cone guided fast ignition. We describe the construction of novel targets in which copper/titanium wires are formed into "nail-like" objects by a process of melting and micromachining so that energy can be reliably coupled to a 24-mum-diameter wire. An extreme-ultraviolet image of the interaction of the Titan laser with such a target is shown.
Keywords :
copper; high-speed optical techniques; laser materials processing; melting; micromachining; plasma interactions; plasma production by laser; titanium; Cu; Ti; Titan laser; hybrid particle in cell; laser-plasma interaction; melting; micromachining; nail-like objects; size 24 mum; ultrahigh power picosecond laser pulses; Electrons; Ignition; Laboratories; Laser stability; Laser theory; Optical pulses; Power lasers; Solid lasers; Ultraviolet sources; Wire; Cone guided fast ignition; extreme ultraviolet imaging; laser-produced electron transport in solids; laser-solid interaction;
