Foam-induced smoothing studied through laser-driven shock waves
The influence of foams on the uniformity of laser energy deposition has been studied by measuring laser-driven shock waves breakout from foam-aluminum layered targets. Well characterized laser nonuniformities have been produced first by using phase zone plates to get a smooth beam and then by inserting different opaque grids before the foam. Smoothing has been studied as a function of foam density and grid materials (producing different radiative effects).
Batani
D
Dipartimento di Fisica "G. Occhialini," Universita degli Studi di Milano Bicocca and INFM, Via Emanueli 15, 20126 Milano, Italy.
Nazarov
W
Hall
T
Lower
T
Koenig
M
Faral
B
Benuzzi-Mounaix
A
Grandjouan
N