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Article Dans Une Revue Physical Review A : Atomic, molecular, and optical physics [1990-2015] Année : 2006

Field-free one-dimensional alignment of ethylene molecule

Résumé

We report an experimental study of non-adiabatic laser-induced molecular alignment of ethylene (C2H4) using a linearly polarized short laser pulse of moderate intensity. The information about the confinement of the C=C bond axis along the direction of the applied electric field is obtained by measuring the depolarization of a second short pulse of weak intensity interacting with the molecules after they have been exposed to the first pulse. The experimental data are compared with the numerical simulation of the Schr¨odinger equation written for the non-resonant interaction of an asymmetric top rigid rotor with a linearly polarized electric field. The field-free alignment is described by analyzing the time evolution of the angular distribution of the molecular axes together with the expectation value of the relevant squared direction cosine matrix elements.
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Dates et versions

hal-00396965 , version 1 (19-06-2009)

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  • HAL Id : hal-00396965 , version 1

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A. Rouzée, S. Guérin, Vincent Boudon, B. Lavorel, O. Faucher. Field-free one-dimensional alignment of ethylene molecule. Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2006, 73, pp.33418. ⟨hal-00396965⟩
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