Abstract
We investigate the differential ionization probability of chiral molecules in the strong-field regime as a function of the helicity of the incident light. To this end, we analyze the fourfold ionization of bromochlorofluoromethane (CHBrClF) with subsequent fragmentation into four charged fragments and different dissociation channels of the singly ionized methyloxirane. By resolving for the molecular orientation, we show that the photoion circular dichroism signal strength is increased by 2 orders of magnitude.
Highlights
By resolving for the molecular orientation, we show that the photoion circular dichroism signal strength is increased by 2 orders of magnitude
Circular dichroism (CD) effects depict the difference in the absorption strength between left- and right-handed circularly polarized (LCP and RCP, respectively) light occurring for the two enantiomers of a chiral substance
One prime example showing the strength of such an approach is the photoelectron circular dichroism (PECD), which is the normalized change of photoelectron angular emission distributions from chiral molecules upon inversion of the light helicity
Summary
Circular dichroism (CD) effects depict the difference in the absorption strength between left- and right-handed circularly polarized (LCP and RCP, respectively) light occurring for the two enantiomers of a chiral substance. We investigate the differential ionization probability of chiral molecules in the strong-field regime as a function of the helicity of the incident light. The chiral effect discussed in this Letter, is the influence of the helicity of the light on the ionization probability that is resolved on the fragmentation direction of the molecule with respect to the light propagation direction.
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