ArticlePhysical chemistry chemical physics : PCCP2023
Fast and precise chiroptical spectroscopy by photoelectron elliptical dichroism.
Article in Physical chemistry chemical physics : PCCP, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Spectroscopy and Conformer-Selective Photoelectron Circular Dichroism of Chiral Molecules.Chemistry, an Asian journal · 2026Review
- Excited State Assignment and State-Resolved Photoelectron Circular Dichroism in Chalcogen-Substituted Fenchones.Chemphyschem : a European journal of chemical physics and physical chemistry · 2025Article
- High-performance gas-phase chiral enantiomer detectors based on chiral-induced spin selectivity effect.Nature communications · 2025Article
- Determination of the Molar Fraction and Enantiomeric Excess of Electrosprayed Amino Acid Anions Employing Photoelectron Circular Dichroism.Analytical chemistry · 2025Article
- Chiral topological light for detection of robust enantiosensitive observables.Nature photonics · 2024Article
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Authors and funding
12 authors.
Funding
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Abstract
The photoionization of chiral molecules by elliptically polarized femtosecond laser pulses produces photoelectron angular distributions which show a strong and enantio-sensitive forward/backward asymmetry along the light propagation direction. We report on high precision measurements of this photoelectron elliptical dichroism (PEELD). Using an optical cavity to recycle the laser pulses and increase the signal-to-noise ratio, we determine enantiomeric excesses with a 0.04% precision with a low-power femtosecond laser (4 W) in a compact scheme. We perform momentum-resolved PEELD measurements in 16 molecules, from volatile terpenes to non-volatile amino acids and large iodoarenes. The results demonstrate the high structural sensitivity of PEELD, confirming the spectroscopic interest of this technique. Last, we show how a convolutional neural network can be used to retrieve the chemical and enantiomeric composition of a sample from the momentum-resolved PEELD maps.
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Registered trials
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