Deflection of Rotating Symmetric Molecules by Inhomogeneous Fields

Details Deflection of Rotating Symmetric Molecules by Inhomogeneous Fields Deflection of Rotating Symmetric Molecules by Inhomogeneous Fields

2011-05-16

arxiv.org/abs/1105.3071v1

Physics

Chemical Physics

Scientific paper

We consider deflection of rotating symmetric molecules by inhomogeneous optical and static electric fields, compare results with the case of linear molecules, and find new singularities in the distribution of the scattering angle. Scattering of the prolate/oblate molecules is analyzed in detail, and it is shown that the process can be efficiently controlled by means of short and strong femtosecond laser pulses. In particular, the angular dispersion of the deflected molecules may be dramatically reduced by laser-induced molecular pre-alignment. We first study the problem by using a simple classical model, and then find similar results by means of more sophisticated methods, including the formalism of adiabatic invariants and direct numerical simulation of the Euler-Lagrange equations of motion. The suggested control scheme opens new ways for many applications involving molecular focusing, guiding, and trapping by optical and static fields.

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