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 7.1μm 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 (≳1.5 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.
@article{arxiv.2207.06876,
title = {High finesse bow-tie cavity for strong atom-photon coupling in Rydberg arrays},
author = {Yu-Ting Chen and Michal Szurek and Beili Hu and Julius de Hond and Boris Braverman and Vladan Vuletic},
journal= {arXiv preprint arXiv:2207.06876},
year = {2022}
}