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arXiv · 2207.06876

High finesse bow-tie cavity for strong atom-photon coupling in Rydberg arrays

Yu-Ting Chen·Michal Szurek·Beili Hu·Julius de Hond·Boris Braverman·Vladan Vuletic
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Abstract

We report a high-finesse bow-tie cavity designed for atomic physics experiments with Rydberg atom arrays. The cavity has a finesse of $51,000$ and a waist of $7.1$ $\mu$m at the cesium D2 line ($852$ nm). With these parameters, the cavity is expected to induce strong coupling between a single atom and a single photon, corresponding to a cooperativity per traveling mode of $35$ at the cavity waist. To trap and image atoms, the cavity setup utilizes two in-vacuum aspheric lenses with numerical aperture ($NA$) of $0.35$ and is capable of housing $NA=0.5$ microscope objectives. In addition, the large atom-mirror distance ($\gtrsim1.5$ cm) provides good optical access and minimizes stray electric fields at the position of the atoms. This cavity setup can operate in tandem with the Rydberg array platform, creating a fully connected system for quantum simulation and computation.

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Yu-Ting Chen, Michal Szurek, Beili Hu, Julius de Hond, Boris Braverman, Vladan Vuletic. 2022-07-14. High finesse bow-tie cavity for strong atom-photon coupling in Rydberg arrays. https://doi.org/10.1364/oe.469644

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