Organic Molecules and Ultracold Atoms for a Hybrid Network

Organic molecules such as dibenzoterrylene (DBT) are exceptional quantum emitters, producing lifetime-limited photons at cryogenic temperatures below 3 K. We observe the superradiant and subradiant states of pairs of molecules tuned into resonance [1]. A significant challenge for organic emitters has been their integration with nanophotonics. Here we demonstrate a hybrid approach for the integration of DBT emitters with high-Q photonic crystal cavities, achieving coupling efficiencies (β) of 40% [2]. Finally, we discuss progress towards a hybrid quantum network with organic emitters and ultracold atoms. We demonstrate narrow-line cooling and background-free imaging with the cesium quadrupole transition (685 nm, 6S-5D) and structured light with orbital angular momentum [3].

[1] C. Lange et al., Nature Physics (2024) 

[2] C. Lange et al., arXiv:2506.01917 (2025)

[3] K.N. Blodgett et al., PRA (2024)

 

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