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Link between Photoelectron Circular Dichroism and Fragmentation Channel in Strong Field Ionization

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journal contribution
posted on 22.07.2019, 16:36 by Kilian Fehre, Sebastian Eckart, Maksim Kunitski, Christian Janke, Daniel Trabert, Jonas Rist, Miriam Weller, Alexander Hartung, Lothar Ph. H. Schmidt, Till Jahnke, Reinhard Dörner, Markus Schöffler
The investigation of the photoelectron circular dichroism (PECD) in the strong field regime (800 nm, 6.9 × 1013 W/cm2) on methyloxirane (MOX) reveals a flip of the sign of PECD between different fragmentation channels. This finding is of great importance for future experiments and applications in chemistry or pharmacy using PECD in the strong field regime as analysis method. We suggest that the observed sign change of PECD is not caused by ionization from different orbitals but by effectively selecting differently oriented nonisotropic subsamples of molecules via the fragmentation channel.