Persistent Ground-State Planar Alignment of Iodine Molecule through Resonant Excitation
Résumé
We demonstrate the generation of a persistent planar molecular alignment by subjecting a relatively warm gas sample to a resonant femtosecond laser pulse. By optically probing I2 molecules in their vibronic ground states, we observe a persistent delocalization of their axes near the plane orthogonal to the field direction. This phenomenon is attributed to the one-photon resonant excitation, primarily removing molecules from the thermal ground state distribution that are initially aligned along the field, i.e. those with small projection of their rotational angular momentum along the field.
Domaines
Optique [physics.optics]| Origine | Fichiers produits par l'(les) auteur(s) |
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