A compact high-flux grating chip cold atom source
Year: 2025
Type: article
Abstract: Diffraction gratings have simplified the optical implementation of magneto-optical traps (MOTs) to require only a single input beam, however reaching high atom number and fast loading has proven to be a challenge. We equipped an atom chip with a grating surface and paired it with a velocity-tunable 2D+-MOT as an atomic source to facilitate efficient loading together with magnetic trapping. Using uniform grating illumination, we magneto-optically trap 1.0 ( 1 ) × 10 9 atoms within one second, cool them to 14.1 ( 3 ) μ K , and transfer a quarter of them into the magnetic chip trap. This is a key step towards simple portable quantum sensors employing (ultra-)cold atoms.
Source: New Journal of Physics
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,610
Awards: G1343323482, G1537845930, G1982645697, G2271486843, G2369560785, SFB 1464: Relativistische und quantenbasierte Geodäsie (TerraQ), G3568584766, G40493870, UK National Quantum Technology Hub in Sensing and Timing, EXC 2123: QuantumFrontiers Licht und Materie an der Quantengrenze, G493662367, G564235600, G6025546037, G745383156, G865028186, G8801224058
OpenAlex ID: W4408097473