Dynamics of solvated electrons in polar liquids using 2-eV femtosecond laser pulses

Daniel Houde; Claude Pepin; T. Goulet; J.-P. Jay-Gerin

doi:10.1117/12.165606

5 January 1994 Dynamics of solvated electrons in polar liquids using 2-eV femtosecond laser pulses

Daniel Houde, Claude Pepin, T. Goulet, J.-P. Jay-Gerin

Proceedings Volume 2041, Mode-locked and Other Ultrashort Laser Designs, Amplifiers, and Applications; (1994) https://doi.org/10.1117/12.165606
Event: Optics Quebec, 1993, Quebec City, Canada

Abstract

The multiphoton ionization of liquid water and methanol and the dynamics of electron solvation in those media are studied with femtosecond time-resolved spectroscopy using a 2- eV laser light pump beam. The formation of the solvated electron in methanol is probed for the first time with femtosecond time resolution. The absorbance A is measured as function of the laser irradiance E for both water and methanol. The power law A varies direct as E^x obtained for water (x equals 1.8) and for methanol (x equals 1.9) differs markedly from that expected from energetic considerations. This is explained in terms of a resonant contribution of intermediate electronic states in the multiphotonic ionization.

Citation Download Citation

Daniel Houde, Claude Pepin, T. Goulet, and J.-P. Jay-Gerin "Dynamics of solvated electrons in polar liquids using 2-eV femtosecond laser pulses", Proc. SPIE 2041, Mode-locked and Other Ultrashort Laser Designs, Amplifiers, and Applications, (5 January 1994); https://doi.org/10.1117/12.165606

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