Bulletin of the American Physical Society
52nd Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 66, Number 6
Monday–Friday, May 31–June 4 2021; Virtual; Time Zone: Central Daylight Time, USA
Session M03: Chiral Molecules and Chiral Light
2:00 PM–4:00 PM,
Wednesday, June 2, 2021
Chair: Jean Marcel Ngoko Djiokap, University of Nebraska - Lincoln
Abstract: M03.00002 : Tracking the bond stretching of chiral molecules using photoelectron circular dichroism*
2:12 PM–2:24 PM
Live
Presenter:
Chi-Hong Isaac Yuen
(Kansas State University)
Authors:
Chi-Hong Isaac Yuen
(Kansas State University)
Esteban Goetz
(Drake University)
Julian Suarez
(Kansas State University)
Christiane Koch
(Freie Universität Berlin)
Loren Greenman
(Kansas State University)
Using an XUV pulse, the valence electron of the prototypical CHFClBr is ionized by left- or
right-circularly polarized light.
The photoelectron circular dichroism (PECD), the asymmetry between the two
polarizations, is used to illustrate the chiral character of the state as the
bond length changes.
With the data of the PECD at different bond lengths, one can map the pump-probe delays to bond distances.
The XUV pulses can also be shaped using quantum optimal control theory to
maximize the signal at different bond lengths.
The ionization dynamics is described by a trio of quantum chemistry, scattering theory, and the time-dependent perturbation theory.
*This work is supported by the Chemical Sciences, Geosciences, and Biosciences Division, Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy, Grant No. DE-SC0019451. This research used resources of the National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility operated under Contract No. DE-AC02-05CH11231
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