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Quantum Chemistry

Mapping the Evolution of Optically-Generated Rotational Wavepackets in a Room Temperature Ensemble of D2

arXiv
Authors: W. A. Bryan, E. M. L. English, J. McKenna, J. Wood, C. R. Calvert, R. Torres, I. C. E. Turcu, J. L. Collier, I. D. Williams, W. R. Newell

Year

2007

Paper ID

49832

Status

Preprint

Abstract Read

~2 min

Abstract Words

89

Citations

N/A

Abstract

A coherent superposition of rotational states in D2 has been excited by nonresonant ultrafast (12 femtosecond) intense 2 $times$ 10$14$ Wcm$-2$ 800 nm laser pulses leading to impulsive dynamic alignment. Field-free evolution of this rotational wavepacket has been mapped to high temporal resolution by a time-delayed pulse, initiating rapid double ionization, which is highly sensitive to the angle of orientation of the molecular axis with respect to the polarization direction, θ. The detailed fractional revivals of the neutral D2 wavepacket as a function of θ and evolution time have been observed and modelled theoretically.

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  • A coherent superposition of rotational states in D2 has been excited by nonresonant ultrafast (12 femtosecond) intense 2 times 10^14 Wcm^-2 800 nm laser pulses leading to...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:0706.4077 [2] arXiv https://arxiv.org/abs/0706.4077 [3] Publisher https://arxiv.org/abs/0706.4077

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