S. Minardi,
C. Milián,
D. Majus,
A. Gopal,
G. Tamošauskas,
A. Couairon,
T. Pertsch,
and A. Dubietis
Energy deposition dynamics of femtosecond pulses in water
Appl. Phys. Lett., 105 :224104 (December 2014)
Energy deposition dynamics of femtosecond pulses in water
Appl. Phys. Lett., 105 :224104 (December 2014)
Abstract:
We exploit inverse Raman scattering and solvated electron absorption to perform a quantitative characterization of the energy loss and ionization dynamics in water with tightly focused near-infrared femtosecond pulses. A comparison between experimental data and numerical simulations suggests that the ionization energy of water is 8 eV, rather than the commonly used value of 6.5 eV. We also introduce an equation for the Raman gain valid for ultra-short pulses that validates our experimental procedure.