Energy deposition dynamics of femtosecond pulses in water

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.

4 pages, 5 figures, submitted to Applied Physics Letters

References in corpus (2)

• Time-resolved refractive index and absorption mapping of light-plasma filaments in water
• Effect of input pulse chirp on nonlinear energy deposition and plasma excitation in water

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