Blast waves produced by interactions of femtosecond laser pulses with water.
The behaviors of the blast waves produced by femtosecond laser-water interactions, and the blast waves induced by laser self-focusing in air, have been investigated using optical shadowgraphy at a maximum intensity of 1 x 10(16) W/cm(2). The temporal evolution of the blast wave launched by the water plasma can be described by a planar blast wave model including source mass. An aneurismlike structure, due to the quick propagation inside a hollow channel formed by laser self-focusing, is observed. The expansion of the channel in air is found to agree with a cylindrical self-similar blast wave solution.
Li
Y T
YT
Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, People's Republic of China.
Zhang
J
J
Teng
H
H
Li
K
K
Peng
X Y
XY
Jin
Z
Z
Lu
X
X
Zheng
Z Y
ZY
Yu
Q Z
QZ