Your browser doesn't support javascript.
loading
Dynamic stark control of torsional motion by a pair of laser pulses.
Christensen, Lauge; Nielsen, Jens H; Brandt, Christian B; Madsen, Christian B; Madsen, Lars Bojer; Slater, Craig S; Lauer, Alexandra; Brouard, Mark; Johansson, Mikael P; Shepperson, Benjamin; Stapelfeldt, Henrik.
Affiliation
  • Christensen L; Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark.
  • Nielsen JH; Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark.
  • Brandt CB; Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark.
  • Madsen CB; Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark.
  • Madsen LB; Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark.
  • Slater CS; Department of Chemistry, University of Oxford, the Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford OX1 3QZ, United Kingdom.
  • Lauer A; Department of Chemistry, University of Oxford, the Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford OX1 3QZ, United Kingdom.
  • Brouard M; Department of Chemistry, University of Oxford, the Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford OX1 3QZ, United Kingdom.
  • Johansson MP; Department of Chemistry, Laboratory for Instruction in Swedish, University of Helsinki, A.I. Virtanens Plats 1, P.O. Box 55, FI-00014 Helsinki, Finland.
  • Shepperson B; Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark.
  • Stapelfeldt H; Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark.
Phys Rev Lett ; 113(7): 073005, 2014 Aug 15.
Article in En | MEDLINE | ID: mdl-25170706
ABSTRACT
The torsional motion of a molecule composed of two substituted benzene rings, linked by a single bond, is coherently controlled by a pair of strong (3×10^{13} W cm^{-2}), nonresonant (800 nm) 200-fs-long laser pulses-both linearly polarized perpendicular to the single-bond axis. If the second pulse is sent at the time when the two benzene rings rotate toward (away from) each other the amplitude of the torsion is strongly enhanced (reduced). The torsional motion persists for more than 150 ps corresponding to approximately 120 torsional oscillations. Our calculations show that the key to control is the strong transient modification of the natural torsional potential by the laser-induced dynamic Stark effect.
Search on Google
Print
XML
PubMed Links

Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2014 Type: Article Affiliation country: Denmark
Search on Google
Print
XML
PubMed Links

Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2014 Type: Article Affiliation country: Denmark