Quantum Control of Photoelectron Circular Dichroism

R. Esteban Goetz, Christiane P. Koch, and Loren Greenman
Phys. Rev. Lett. 122, 013204 – Published 10 January 2019
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Abstract

We demonstrate coherent control over the photoelectron circular dichroism in randomly oriented chiral molecules, based on quantum interference between multiple photoionization pathways. To significantly enhance the chiral signature, we use a finite manifold of indistinguishable (1+1) resonantly enhanced multiphoton ionization pathways interfering at a common photoelectron energy but probing different intermediate states. We show that this coherent control mechanism maximizes the number of molecular states that constructively contribute to the dichroism at an optimal photoelectron energy and thus outperforms other schemes, including interference between opposite-parity pathways driven by bichromatic (ω, 2ω) fields as well as sequential pump-probe ionization.

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  • Received 11 September 2018

DOI:https://doi.org/10.1103/PhysRevLett.122.013204

© 2019 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

R. Esteban Goetz1, Christiane P. Koch2, and Loren Greenman1,*

  • 1Department of Physics, Kansas State University, 116 Cardwell Hall, 1228 North 17th Street, Manhattan, Kansas 66506-2601, USA
  • 2Theoretische Physik, Universität Kassel, Heinrich-Plett-Strasse 40, D-34132 Kassel, Germany

  • *lgreenman@phys.ksu.edu

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Issue

Vol. 122, Iss. 1 — 11 January 2019

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