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CORDIS

Coherent Control of Chiral Molecules

Objective

The ambitious goal of this project is to create an enantiomer-pure beam of chiral molecules, starting from a racemic sample, using an experimental coherent state preparation scheme.
The basic elements of the proposed experiments are the following.
A cold, gas-phase beam of chiral molecules is created via supersonic jet expansion. Two levels of a triad of rotational states that are connected via electric dipole allowed transitions are emptied using resonant UV depletion in combination with simultaneous microwave repumping.
Driving a closed triad of rotational transitions using microwaves prepares a chosen internal quantum state of the chiral molecules enantiomer-specifically. This is called enantiomer-specific state transfer; a new method, that I co-developed. After coherence preparation using collimation, state-selective matter-wave diffraction is accomplished using a resonant, absorptive optical grating.
The diffracted enantiomer-pure beam is detected state-selectively using 2D planar laser-induced fluorescence detection.
Eventually, this beam can be used for further spectroscopic or scattering studies or for depositing the enantiopure sample on a surface.
The scheme that is to be demonstrated in COCOCIMO will be applicable to any chiral molecule.

Host institution

MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV
Net EU contribution
€ 1 809 735,00
Address
HOFGARTENSTRASSE 8
80539 Munchen
Germany

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Region
Bayern Oberbayern München, Kreisfreie Stadt
Activity type
Research Organisations
Links
Total cost
€ 1 809 735,00

Beneficiaries (1)