Long distance optical transport of ultracold atoms: A compact setup using a Moiré lens
Abstract
We present a compact and robust setup to optically transport ultracold atoms over long distances. Using a focus-tunable moiré lens that has recently appeared in the market, we demonstrate transport of up to a distance of 465 mm. A transfer efficiency of 70% is achieved with a negligible temperature change at 11 μK. With its high thermal stability and low astigmatism, the moiré lens is superior to fluid-based varifocal lenses. It is much more compact and stable than a lens mounted on a linear translation stage, allowing for simplified experimental setups.
- Publication:
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Review of Scientific Instruments
- Pub Date:
- June 2021
- DOI:
- 10.1063/5.0049320
- arXiv:
- arXiv:2103.02387
- Bibcode:
- 2021RScI...92f3205U
- Keywords:
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- Condensed Matter - Quantum Gases;
- Physics - Atomic Physics
- E-Print:
- Data available at https://doi.org/10.5281/zenodo.6376237