English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Strong chiral dichroism and enantiopurification in above-threshold ionization with locally chiral light

MPS-Authors
/persons/resource/persons261477

Neufeld,  O.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Physics Department and Solid State Institute, Technion–Israel Institute of Technology;

/persons/resource/persons221951

Hübener,  H.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

/persons/resource/persons22028

Rubio,  A.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Computational Quantum Physics (CCQ), The Flatiron Institute;

/persons/resource/persons221949

de Giovannini,  U.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
IKERBASQUE, Basque Foundation for Science;

Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)

PhysRevResearch.3.L032006.pdf
(Publisher version), 833KB

Supplementary Material (public)

SM_PRR_resub2_fin.pdf
(Supplementary material), 608KB

Citation

Neufeld, O., Hübener, H., Rubio, A., & de Giovannini, U. (2021). Strong chiral dichroism and enantiopurification in above-threshold ionization with locally chiral light. Physical Review Research, 3(3): L032006. doi:10.1103/PhysRevResearch.3.L032006.


Cite as: http://hdl.handle.net/21.11116/0000-0008-E853-5
Abstract
We derive here a highly selective photoelectron-based chirality-sensing technique that utilizes “locally chiral” laser pulses. We show that this approach results in strong chiral discrimination, where the standard forwards/backwards asymmetry of photoelectron circular dichroism (PECD) is lifted. The resulting dichroism is larger and more robust than conventional PECD (especially in the high-energy part of the spectrum), is found in all hemispheres, and is not symmetric or antisymmetric with respect to any symmetry operator. Remarkably, chiral dichroism of up to 10% survives in the angularly integrated above-threshold ionization (ATI) spectra, and chiral dichroism of up to 5% survives in the total ionization rates. We demonstrate these results through ab initio calculations in the chiral molecules bromochlorofluoromethane, limonene, fenchone, and camphor. We also explore the parameter space of the locally chiral field and show that the observed dichroism is strongly correlated to the degree of chirality of the light, validating it as a measure for chiral-interaction strengths. Our results pave the way for highly selective probing of ultrafast chirality in ATI and motivate the use of locally chiral light for enhancing ultrafast spectroscopies. Most importantly, the technique can be implemented to achieve all-optical enantiopurification of chiral samples.