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

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Article number	033419
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	86
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevA.86.033419
Publication status	Published - 19 Sept 2012
Externally published	Yes

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10.1103/PhysRevA.86.033419

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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

Y1 - 2012/9/19

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.

UR - https://www.scopus.com/pages/publications/84866531881

U2 - 10.1103/PhysRevA.86.033419

DO - 10.1103/PhysRevA.86.033419

M3 - Article

AN - SCOPUS:84866531881

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VL - 86

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

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

IS - 3

M1 - 033419

ER -

Probing ultrafast thermalization with field-free molecular alignment

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