English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We demonstrate a compact magneto-optical trap (MOT) of alkaline-earth atomsusing a nanofabricated diffraction grating chip. A single input laser beam,resonant with the broad $^1$S$_0\,\rightarrow \,^1$P$_1$ transition ofstrontium, forms the MOT in combination with three diffracted beams from thegrating chip and a magnetic field produced by permanent magnets. A differentialpumping tube limits the effect of the heated, effusive source on the backgroundpressure in the trapping region. The system has a total volume of around 2.4 L.With our setup, we have trapped up to $5 \times 10^6$ $^{88}$Sr atoms, at atemperature of approximately $6$ mK, and with a trap lifetime of approximately1 s. Our results will aid the effort to miniaturize optical atomic clocks andother quantum technologies based on alkaline-earth atoms.

Confinement of an alkaline-earth element in a grating magneto-optical trap