The effect of a nonresonant radiative field on low-energy rotationally 
inelastic Na+ +N2 collisions

Lemeshko, Mikhail; Friedrich, Bretislav

doi:10.1016/j.ijms.2008.06.010

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The effect of a nonresonant radiative field on low-energy rotationally inelastic Na⁺ +N₂ collisions

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Lemeshko, Mikhail
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Friedrich, Bretislav
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Citation

Lemeshko, M., & Friedrich, B. (2009). The effect of a nonresonant radiative field on low-energy rotationally inelastic Na⁺ +N₂ collisions. International Journal of Mass Spectrometry, 280(1-3), 19-25. doi:10.1016/j.ijms.2008.06.010.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0010-FA1E-7

Abstract

We examine the eﬀects of a linearly polarized nonresonant radiative ﬁeld on the dynamics of rotationally inelastic Na⁺ +N₂ collisions at eV collision energies. Our treatment is based on the Fraunhofer model of matter wave scattering and its recent extension to collisions in electric ﬁelds [M. Lemeshko and B. Friedrich, J. Chem. Phys., in press]. The nonresonant radiative ﬁeld changes the eﬀective shape of the target molecule by aligning it in the space-ﬁxed frame. This markedly alters the diﬀerential and integral scattering cross sections. As the cross sections can be evaluated for a polarization of the radiative ﬁeld collinear or perpendicular to the relative velocity vector, the model also oﬀers predictions about steric asymmetry of the collisions.