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MO: Fachverband Molekülphysik
MO 3: Chiral Molecules
MO 3.3: Vortrag
Montag, 9. März 2020, 14:45–15:00, f102
Chiral resonant energy transfer in a medium — •Janine Franz1, Robert Bennett1, Stefan Yoshi Buhmann1, and Akbar Salam2 — 1Physikalische Institut, Albert-Ludwigs-Universitat Freiburg, Hermann-Herder-Strasse 3, 79104 Freiburg , Germany — 2Department of Chemistry, Wake Forest University, Winston-Salem, NC 27109, USA
It has been shown that resonance energy transfer (RET) between chiral molecules can be used to discriminate enantiomers (1). The RET rate between two molecules of the same handedness is slightly different than between molecules with opposite chirality. By using macroscopic quantum electrodynamics we can study how to enhance this effect using an intervening medium and hence propose a distinct but related way to discriminate between enantiomers by using a medium with known chirality. However, when embedding a donor or acceptor molecule in a macroscopic medium, the microscopic structure of the medium close to the embedded molecule needs to be taken into account, which can be achieved using the so-called local-field correction. This turns out to be quite challenging for a chiral medium where contributions from light of opposite circular polarisation needs to be distinguished. In this talk I will outline the challenges encountered and propose some possible solutions. We also extend our theory to the related process of interatomic Coulombic decay (ICD), which offers different possibilities for the discrimantion compared to resonant energy transfer.
(1) D. P. Craig, T. Thirunamachandran, J. Chem. Phys. 109 (1998)