B4

Controlled enantiomeric transformation with femtosecond laser pulses

Dr. Arne Senftleben

We aim to understand and control the transformation of an individual chiral molecule from one enantiomer to the other. The work plan is designed to pave the way to achieve the long-term goal of enantiomeric purification of chiral molecules by optical means. Therefore, we will investigate the dynamics induced by excitation of an excited state with achiral geometry in a two-color pump-probe experiment. The probe will be photoelectron circular dichroism (PECD), which is highly sensitive on minor changes in chirality. Later, we will use a time-domain control approach to invert the handedness of an enantiopure sample. These two tasks are accompanied by static reference measurements of our PECD probe on the three chiral molecules under investigation.