Enabling the mass production of a chip-scale laser cooling platform

Bregazzi, Alan and Dyer, Sean and Griffin, Paul F. and Burt, David P. and Arnold, Aidan S. and Riis, Erling and McGilligan, James P.; Padgett, Miles J. and Bongs, Kai and Fedrizzi, Alessandro and Politi, Alberto, eds. (2021) Enabling the mass production of a chip-scale laser cooling platform. In: Proceedings Volume 11881, Quantum Technology, Driving Commercialisation of an Enabling Science II. Proceedings of SPIE, the International Society for Optical Engineering, 11881 . SPIE, GBR. ISBN 9781510646070 (https://doi.org/10.1117/12.2601340)

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A low-cost, mass-producible laser-cooling platform would have a transformative effect in the burgeoning field of quantum technologies and the wider research of atomic sensors. Recent advancements in the micro-fabrication of diffractive optics and vacuum apparatus have paved the way for a simple, stackable solution to the laser cooling of alkali atoms. In this paper we will highlight our recent investigations into a chip-scale, cold-atom platform, outlining our approach for on-chip wavelength referencing, examining a solution for imaging atoms in a planar stacked device, and finally discussing the limitations to passively pumped vacuum longevity. These results will be discussed in the context of an outlined road-map for the production and commercialisation of chip-scale, cold-atom sensors.