Probing ultrafast thermalization with field-free molecular alignment

J. Houzet; J. Gateau; E. Hertz; F. Billard; B. Lavorel; J. M. Hartmann; C. Boulet; O. Faucher

doi:10.1103/PhysRevA.86.033419

Probing ultrafast thermalization with field-free molecular alignment

J. Houzet
, J. Gateau
, E. Hertz
, F. Billard
, B. Lavorel
, J. M. Hartmann
, C. Boulet
, O. Faucher

Centre de Recherches de Climatologie, CNRS UMR 5210, Université de Bourgogne
Service d'Aéronomie
Universite Paris-Sud

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

The rotation-translation thermalization of CO ² gas is investigated 500 ps after its preheating by a nonresonant short and intense laser pulse. The temperature of thermalization is optically determined with two additional short laser pulses enabling a field-free molecular alignment process and its probing, respectively. The measurements are performed for various intensities of the preheat pulse, leading to the observation of different temperatures which are in very good agreement with classical molecular dynamics simulations. The results can be regarded as a step towards real-time tracking of ultrafast relaxation pathways in molecular motion.

langue originale	Anglais
Numéro d'article	033419
journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	86
Numéro de publication	3
Les DOIs	https://doi.org/10.1103/PhysRevA.86.033419
état	Publié - 19 sept. 2012
Modification externe	Oui

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10.1103/PhysRevA.86.033419

Contient cette citation

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title = "Probing ultrafast thermalization with field-free molecular alignment",

abstract = "The rotation-translation thermalization of CO 2 gas is investigated 500 ps after its preheating by a nonresonant short and intense laser pulse. The temperature of thermalization is optically determined with two additional short laser pulses enabling a field-free molecular alignment process and its probing, respectively. The measurements are performed for various intensities of the preheat pulse, leading to the observation of different temperatures which are in very good agreement with classical molecular dynamics simulations. The results can be regarded as a step towards real-time tracking of ultrafast relaxation pathways in molecular motion.",

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AU - Houzet, J.

AU - Gateau, J.

AU - Hertz, E.

AU - Billard, F.

AU - Lavorel, B.

AU - Hartmann, J. M.

AU - Boulet, C.

AU - Faucher, O.

PY - 2012/9/19

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N2 - The rotation-translation thermalization of CO 2 gas is investigated 500 ps after its preheating by a nonresonant short and intense laser pulse. The temperature of thermalization is optically determined with two additional short laser pulses enabling a field-free molecular alignment process and its probing, respectively. The measurements are performed for various intensities of the preheat pulse, leading to the observation of different temperatures which are in very good agreement with classical molecular dynamics simulations. The results can be regarded as a step towards real-time tracking of ultrafast relaxation pathways in molecular motion.

AB - The rotation-translation thermalization of CO 2 gas is investigated 500 ps after its preheating by a nonresonant short and intense laser pulse. The temperature of thermalization is optically determined with two additional short laser pulses enabling a field-free molecular alignment process and its probing, respectively. The measurements are performed for various intensities of the preheat pulse, leading to the observation of different temperatures which are in very good agreement with classical molecular dynamics simulations. The results can be regarded as a step towards real-time tracking of ultrafast relaxation pathways in molecular motion.

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DO - 10.1103/PhysRevA.86.033419

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JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

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Probing ultrafast thermalization with field-free molecular alignment

Résumé

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