SAMOP 2021 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

MO: Fachverband Molekülphysik

MO 3: Chirality

MO 3.8: Talk

Tuesday, September 21, 2021, 12:45–13:00, H3

Molecular Spectroscopy in a Chiral Cavity: Polariton Ring Currents and Circular Dichroism of Mg-porphyrin — •Shichao Sun, Bing Gu, and Shaul Mukamel — Department of Chemistry and Department of Physics and Astronomy, University of California, Irvine, United States

Time reversal symmetry can be broken by placing a Mg-porphyrin molecule in a chiral optical cavity, thus generating polariton ring currents even with linearly polarized light. These currents induce a circular dichroism signal. Since the electronic state degeneracy in the molecule is lifted by the formation of chiral polaritons, this signal is one order of magnitude stronger than the bare molecule signal induced by circularly polarized light. Controlling photochemical processes by chiral optical cavities is an intriguing future direction.