The project deals with hybrid systems that consist of ultracold atoms and solid surfaces with integrated plasmonic structures. We investigate interactions between atoms and surface plasmons under several perspectives:
- Atoms as quantum sensors for plasmonic near-fields
- Surface plasmoncs as sensors for atoms / nondestructive detection of atoms.
- Excitation of surface plasmons by atomic fluorescence with high cooperativity / Purcell-enhancement.
The project deals with the CQED regime of strong coupling of ultracold Rydberg atoms with the light fields insinde an optical high-finesse cavity. We aim to investigate how light scattering in the cavity is influenced by the coupling to a high-lying Rydberg level, in particular, when Rydberg long-range interactions compete with cavity-mediated global interactions. A second goal is the sythesis of non-classical states of light inside the cavity.