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Q: Fachverband Quantenoptik und Photonik
Q 42: Poster – Ultracold Matter (joint session Q/A)
Q 42.26: Poster
Mittwoch, 4. März 2026, 17:00–19:00, Philo 2. OG
Imaging transverse interactions between Rydberg polaritons — •Daniil Svirskiy1, Bankim Chandra Das2, Matthias Metternich1, Enrico Huland1, Benedikt Beck1, Nina Stiesdal1, Wolfgang Alt1, Ofer Firstenberg2, and Sebastian Hofferberth1 — 1Institute of Applied Physics, University of Bonn, Germany — 2Weizmann Institute of Science, Rehovot, Israel
Realization of photon-photon interaction is possible via a medium with strong optical nonlinearities, for instance, with a cloud of ultracold Rydberg atoms, where single photons propagate through the atomic medium as interacting Rydberg polaritons under the condition of electromagnetically induced transparency. Most experiments to date were aiming towards 1D systems, where the Rydberg polaritons only interact along their propagation direction and also, only time domain correlations were mainly studied.
On our poster, we will discuss the current approach to probing transverse interactions by detecting transmitted photons with a single-photon-sensitive EMCCD camera. We will also show first experimentally measured images and compare them with numerical simulations based on our 2D model that captures how transverse interactions become imprinted on the outgoing light field. These measurements will provide us with an access to the direct observation of the transversal Rydberg blockade effect. Furthermore, we show the integration of the EMCCD camera in our experimental setup. The EMCCD timing, the pulse sequence in the experiment and the synchronization will be discussed in detail.
Keywords: Rydberg polaritons; EIT; EMCCD camera