Time-resolved imaging of purely valence-electron dynamics during a chemical reaction

Download
  1. (PDF, 375 KB)
  2. Get@NRC: Time-resolved imaging of purely valence-electron dynamics during a chemical reaction (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1038/NPHYS1980
AuthorSearch for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleNature Physics
Volume7
Issue8
Pages612615; # of pages: 4
SubjectAtomic and molecular physics; Optical physics; Techniques and instrumentation
AbstractChemical reactions are manifestations of the dynamics of molecular valence electrons and their couplings to atomic motions. Emerging methods in attosecond science can probe purely electronic dynamics in atomic and molecular systems. By contrast, time-resolved structural-dynamics methods such as electron or X-ray diffraction and X-ray absorption yield complementary information about the atomic motions. Time-resolved methods that are directly sensitive to both valence-electron dynamics and atomic motions include photoelectron spectroscopy and high-harmonic generation: in both cases, this sensitivity derives from the ionization-matrix element. Here we demonstrate a time-resolved molecular-frame photoelectron-angular-distribution (TRMFPAD) method for imaging the purely valence-electron dynamics during a chemical reaction. Specifically, the TRMFPADs measured during the non-adiabatic photodissociation of carbon disulphide demonstrate how the purely electronic rearrangements of the valence electrons can be projected from inherently coupled electronic vibrational dynamics. Combined with ongoing efforts in molecular frame alignment and orientation, TRMFPADs offer the promise of directly imaging valence-electron dynamics during molecular processes without involving the use of strong, highly perturbing laser fields.
Publication date
LanguageEnglish
AffiliationNRC Steacie Institute for Molecular Sciences; National Research Council Canada
Peer reviewedYes
NPARC number19739650
Export citationExport as RIS
Report a correctionReport a correction
Record identifier386e543a-ce35-476e-8901-eeed1d180d9d
Record created2012-04-02
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)