Year: 2017
Type: article
Abstract: Recently developed circularly polarized X-ray light sources can probe the ultrafast chiral electronic and nuclear dynamics through spatially localized resonant core transitions. We present simulations of time-resolved circular dichroism signals given by the difference of left and right circularly polarized X-ray probe transmission following an excitation by a circularly polarized optical pump with the variable time delay. Application is made to formamide which is achiral in the ground state and assumes two chiral geometries upon optical excitation to the first valence excited state. Probes resonant with various K-edges (C, N, and O) provide different local windows onto the parity breaking geometry change thus revealing the enantiomer asymmetry.
Source: Structural Dynamics
DOI: 10.1063/1.4974260
Institution: University of California, Irvine
Language: English
Subfield: Radiation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,200
Awards: G1500282110, G1524271734, G1841704407, THEORY AND SIMULATION OF ULTRAFAST NONLINEAR X-RAY SPECTROSCOPY OF MOLECULES, G222768804, G4383877833, THEORY AND SIMULATION OF ULTRAFAST NONLINEAR X-RAY SPECTROSCOPY OF MOLECULES, TAS::89 0222::TAS - THEORY AND SIMULATION OF NONLINEAR X-RAY SPECTROSCOPY OF MOLECULES, G5648016710, Molecular Radiative and Relaxation Processes, G7121909114, TAS::89 0222::TAS - THEORY AND SIMULATION OF NONLINEAR X-RAY SPECTROSCOPY OF MOLECULES
OpenAlex ID: W2565739177