Femtosecond two-photon ionization of fluid NH3 at 9.3 eV

Liquid and supercritical ammonia (NH3) is photo-ionized at an energy of 9.3 eV with 100-fs duration pulses at a wavelength of 266 nm. The ionization involves two photons and generates fully solvated electrons via the conduction band of the solvent within the time resolution of the experiment. The dy...

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Bibliographic Details
Main Authors: Torres-Alacan Joel, Dahmen Annika, Urbanek Janus, Vöhringer Peter
Format: Conference Proceeding
Language:English
Online Access:Get full text
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Summary:Liquid and supercritical ammonia (NH3) is photo-ionized at an energy of 9.3 eV with 100-fs duration pulses at a wavelength of 266 nm. The ionization involves two photons and generates fully solvated electrons via the conduction band of the solvent within the time resolution of the experiment. The dynamics of their ensuing geminate recombination is followed in real time with femtosecond near-infrared (IR) probe pulses. The recombination mechanism can be understood as an ion-pair mediated reaction. The electron survival probability is found to be in quantitative agreement with the classical Onsager theory for the initial recombination of ions.
ISSN:2100-014X
DOI:10.1051/epjconf/20134105027