Vector correlations in dissociative photoionization of diatomic molecules in the VUV range: strong anisotropies in electron emission from spatially oriented NO molecules

A Lafosse; M Lebech; J C Brenot; P M Guyon; O Jagutzki; L Spielberger; M Vervloet; J C Houver; D Dowek

doi:10.1103/PhysRevLett.84.5987

Vector correlations in dissociative photoionization of diatomic molecules in the VUV range: strong anisotropies in electron emission from spatially oriented NO molecules

Phys Rev Lett. 2000 Jun 26;84(26 Pt 1):5987-90. doi: 10.1103/PhysRevLett.84.5987.

Authors

A Lafosse¹, M Lebech, J C Brenot, P M Guyon, O Jagutzki, L Spielberger, M Vervloet, J C Houver, D Dowek

Affiliation

¹ Laboratoire des Collisions Atomiques et Moléculaires (Unité Mixte de Recherche Université Paris-Sud et Centre National de la Recherche Scientifique, No. 8625), Université Paris-Sud, Bâtiment 351, F-91405 Orsay Cedex, France. [email protected]

PMID: 10991105
DOI: 10.1103/PhysRevLett.84.5987

Abstract

Imaging and time-resolved coincidence techniques are combined to determine ion-electron (v-->(i),v-->(e)) velocity correlations in dissociative photoionization of diatomic molecules induced by synchrotron linearly polarized light P-->. The (v-->(i),v-->(e), P-->) vector correlation yields the identification of each process, together with the ( straight theta(e), straight phi(e)) electron emission in the molecule frame for each orientation of the internuclear axis with respect to the polarization. Strong electron emission anisotropies are observed in the NO molecule frame for the parallel and the perpendicular transitions of the NO+hnu(22-25 eV)-->NO+(c(3) Pi)+e-->N+(3P)+O(3P)+e reaction.