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FEMTOSECOND MULTI-PHOTON IONIZATION VIA SHORT-LIVED RESONANCES

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/18824

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dc.creator Weber, Peter M. en_US
dc.creator Carpenter, Scott D. en_US
dc.creator Schick, Carolyn P. en_US
dc.date.accessioned 2006-06-15T19:01:05Z
dc.date.available 2006-06-15T19:01:05Z
dc.date.issued 1998 en_US
dc.identifier 1998-MH-02 en_US
dc.identifier.uri http://hdl.handle.net/1811/18824
dc.description Author Institution: Department of Chemistry, Brown University en_US
dc.description.abstract Many aromatic molecules have strong, broad absorption features in the far UV. These resonances belong to highly excited electronic states with very short lifetimes, reflecting either ultrafast intramolecular relaxation, or dissociation of the molecule. We demonstrate experimentally that such short-lived resonances can be used for multi-photon ionization provided that the excitation pulse is on a femtosecond time scale. We ionize phenol via the $S_{2}$ electronic state at wavelengths near 206 nm. The time-of-flight photoelectron spectrum is highly congested and unresolved, but indicates that about 0.5 eV of energy is deposited into the ion in the course of the two-photon ionization process. The mass spectrum reveals minimal fragmentation. en_US
dc.format.extent 77825 bytes
dc.format.mimetype image/jpeg
dc.language.iso English en_US
dc.title FEMTOSECOND MULTI-PHOTON IONIZATION VIA SHORT-LIVED RESONANCES en_US
dc.type article en_US