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arXiv · 2111.04160

An optical elevator for precise delivery of cold atoms using an acousto-optical deflector

Francesco Ferri·Arthur La Rooij·Claire Lebouteiller·Pierre-Antoine Bourdel·Mohamed Baghdad·Sylvain Schwartz·Sébastien Garcia·Jakob Reichel·Romain Long
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Abstract

We implement a simple method for fast and precise delivery of ultracold atoms to a microscopic device, i.e. a Fabry-Perot microcavity. By moving a single beam optical dipole trap in a direction perpendicular to the beam axis with an acousto-optical deflector, we transport up to 1 million atoms within 100$\,$ms over $1\,$cm. Under these conditions, a transport efficiency above $95\%$ is achieved with only minimal heating. The atomic cloud is accurately positioned within the microcavity and transferred into an intra-cavity optical lattice. With the addition of a secondary guiding beam, we show how residual sloshing motion along the shallow axis of the trap can be minimized.

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Francesco Ferri, Arthur La Rooij, Claire Lebouteiller, Pierre-Antoine Bourdel, Mohamed Baghdad, Sylvain Schwartz, Sébastien Garcia, Jakob Reichel, Romain Long. 2021-11-07. An optical elevator for precise delivery of cold atoms using an acousto-optical deflector. https://doi.org/10.1088/1367-2630%2Fac5f84

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