A coincidence 3-D momentum imaging technique is employed to study the dissociation of a metastable NO2+ beam in an intense ultrafast laser field. We find that dissociation into N+ + O+ is aligned perpendicular to the laser polarization for intensities below 1015 W/cm2 while higher intensities (∼1016 W/cm 2) yield a prominent contribution from molecules breaking parallel to the field. The latter feature may be due to direct 2-photon transition to the vibrational continuum of the X2Σ+ ground state, a surprising multiphoton vibrational excitation. © Published under licence by IOP Publishing Ltd.
CITATION STYLE
Jochim, B., Zohrabi, M., Gaire, B., Ablikim, U., Carnes, K. D., Wells, E., … Ben-Itzhak, I. (2012). Strong field dissociation dynamics of NO2+: A multiphoton electronic or vibrational excitation? In Journal of Physics: Conference Series (Vol. 388). Institute of Physics Publishing. https://doi.org/10.1088/1742-6596/388/3/032015
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