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Phys Chem Chem Phys. 2015 Jan 14;17(2):951-6. doi: 10.1039/c4cp04434g. Epub 2014 Nov 19.

Observation of nondispersing classical-like molecular rotation.

Author information

1
Department of Physics & Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC, Canada V6T 1Z1. korobenk@phas.ubc.ca.

Abstract

Using the technique of an optical centrifuge, we produce rotational wave packets which evolve in time along either classical-like or non-classical trajectories. After releasing O2 and D2 molecules from the centrifuge, we track their field-free rotation by monitoring the molecular angular distribution with velocity map imaging. Due to the dispersion of the created rotational wave packets in oxygen, we observe a gradual transition between "dumbbell"-shaped and "cross"-shaped distributions, both rotating with a classical rotation frequency. In deuterium, a much narrower rotational wave packet is produced and shown to evolve in a truly classical non-dispersing fashion.

PMID:
25407341
DOI:
10.1039/c4cp04434g

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