A dielectric metasurface optical chip for the generation of cold atoms.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 32832692.
- Also identified by DOI 10.1126/sciadv.abb6667 and PMC identifier 7439576.
- Licence recorded as CC BY-NC.
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Abstract
Compact and robust cold atom sources are increasingly important for quantum research, especially for transferring cutting-edge quantum science into practical applications. In this study, we report on a novel scheme that uses a metasurface optical chip to replace the conventional bulky optical elements used to produce a cold atomic ensemble with a single incident laser beam, which is split by the metasurface into multiple beams of the desired polarization states. Atom numbers ~10<sup>7</sup> and temperatures (about 35 μK) of relevance to quantum sensing are achieved in a compact and robust fashion. Our work highlights the substantial progress toward fully integrated cold atom quantum devices by exploiting metasurface optical chips, which may have great potential in quantum sensing, quantum computing, and other areas.