Laser-induced breakdown versus self-focusing for focused picosecond pulses in water.
We present numerical studies of nonlinear propagation for picosecond pulses focused in water. Depending on the pulse duration and focusing conditions, for some input powers self-focusing may precede laser-induced breakdown and vice versa. We derive a criterion that predicts the relative roles of laser-induced breakdown and self-focusing.
Feng
Q
Q
Moloney
J V
JV
Newell
A C
AC
Wright
E M
EM