Nuclear spin selective laser control of rotational and torsional dynamics

J. Flo, T. Grohmann, M. Leibscher*, T. Seideman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


We explore the possibility of controlling rotational-torsional dynamics of non-rigid molecules with strong, non-resonant laser pulses and demonstrate that transient, laser-induced torsional alignment depends on the nuclear spin of the molecule. Consequently, nuclear spin isomers can be manipulated selectively by a sequence of time-delayed laser pulses. We show that two pulses with different polarization directions can induce either overall rotation or internal torsion, depending on the nuclear spin. Nuclear spin selective control of the angular momentum distribution may open new ways to separate and explore nuclear spin isomers of polyatomic molecules.

Original languageEnglish (US)
Article number084309
JournalJournal of Chemical Physics
Issue number8
StatePublished - Feb 28 2012

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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