Alignment dependent enhancement of the photoelectron cutoff for multiphoton ionization of molecules.
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The multiphoton ionization rate of molecules depends on the alignment of the molecular axis with respect to the ionizing laser polarization. By studying molecular frame photoelectron angular distributions from N(2), O(2), and benzene, we illustrate how the angle-dependent ionization rate affects the photoelectron cutoff energy. We find alignment can enhance the high energy cutoff of the photoelectron spectrum when probing along a nodal plane or when ionization is otherwise suppressed. This is supported by calculations using a tunneling model with a single ion state.
author list (cited authors)
Smeenk, C., Arissian, L., Sokolov, A. V., Spanner, M., Lee, K. F., Staudte, A., Villeneuve, D. M., & Corkum, P. B.
complete list of authors
Smeenk, CTL||Arissian, L||Sokolov, AV||Spanner, M||Lee, KF||Staudte, A||Villeneuve, DM||Corkum, PB