1949/10/01 by I. Tutunnikov, Ilia Tutunnikov, Erez Gershnabel +6
Chemistry · Engineering · Materials Science · Physics and Astronomy · #Chemical physics #Chemistry #Circular polarization #Dipole #Enantiomer #Engineering #Environmental science #Forensic engineering #Geology #Graphite, nuclear technology, radiation studies #Laser #Laser-Matter Interactions and Applications #Magnetic field #Materials science #Molecular physics #Molecular spectroscopy and chirality #Molecule #Nuclear and radioactivity studies #Optics #Physical chemistry #Physics #Polarization (electrochemistry) #Quantum mechanics #Spectroscopy and Quantum Chemical Studies #Stereochemistry #physics.chem-ph #physics.optics
paper · pdf · doi:10.1021/acs.jpclett.7b03416
published as J. Phys. Chem. Lett. 9, 5, 1105-1111 (2018)
openalex publication_date 1949/10/01 · openalex created_date 2016/06/24 · arxiv created 2017/11/05 · arxiv updated 2018/03/23 · openalex updated_date 2026/06/24
We explore a pure optical method for enantioselective orientation of chiral molecules by means of laser fields with twisted polarization. Several field implementations are considered, including a pair of delayed, cross-polarized laser pulses, an optical centrifuge, and polarization-shaped pulses. We show that these schemes lead to out-of-phase time-dependent dipole signals for different enantiomers, and we also predict a substantial permanent molecular orientation persisting long after the laser fields are over. The underlying classical orientation mechanism common to all of these fields is discussed, and its operation is demonstrated for a range of chiral molecules of various complexity: hydrogen thioperoxide (HSOH), propylene oxide (CH<sub>3</sub>CHCH<sub>2</sub>O), and ethyl oxirane (CH<sub>3</sub>CH<sub>2</sub>CHCH<sub>2</sub>O). The presented results demonstrate generality, versatility, and robustness of this optical method for manipulating molecular enantiomers in the gas phase.