A centilitre-scale vacuum chamber for compact ultracold quantum technologies

Burrow, Oliver S.; Arnold, Aidan S.; Griffin, Paul F.; Riis, Erling

doi:10.1117/12.2584918

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Both the diffraction gratings [10,11] and beam launch optics [12] of a grating MOT are amenable to nanofabrication. Grating MOTs have also been integrated with compact vacuum systems [13,14]. Chip-scale quantum sensors appear attainable in the near future on the grating MOT platform.…”

Section: Introductionmentioning

confidence: 99%

$Λ$-enhanced gray molasses in a tetrahedral laser beam geometry

Barker,

Norrgard,

Klimov

et al. 2021

Preprint

View full text Add to dashboard Cite

We report observation of sub-Doppler cooling of lithium using an irregulartetrahedral laser beam arrangement, which is produced by a nanofabricated diffraction grating. We are able to capture 11(2) % of the lithium atoms from a grating magneto-optical trap into Λ-enhanced 𝐷 1 gray molasses. The molasses cools the captured atoms to a radial temperature of 60(9) µK and an axial temperature of 23(3) µK. In contrast to results from conventional counterpropagating beam configurations, we do not observe cooling when our optical fields are detuned from Raman resonance. An optical Bloch equation simulation of the cooling dynamics agrees with our data. Our results show that grating magneto-optical traps can serve as a robust source of cold atoms for tweezer-array and atom-chip experiments, even when the atomic species is not amenable to sub-Doppler cooling in bright optical molasses.

show abstract

Section: Introductionmentioning

confidence: 99%

$Λ$-enhanced gray molasses in a tetrahedral laser beam geometry

Barker,

Norrgard,

Klimov

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

A simple imaging solution for chip-scale laser cooling

Bregazzi

Griffin

Arnold

et al. 2021

Applied Physics Letters

View full text Add to dashboard Cite

We demonstrate a simple stacked scheme that enables absorption imaging through a hole in the surface of a grating magneto-optical trap (GMOT) chip, placed immediately below a micro-fabricated vacuum cell. The imaging scheme is capable of overcoming the reduced optical access and surface scatter that is associated with this chip-scale platform while further permitting both trapping and imaging of the atoms from a single incident laser beam. The through-hole imaging is used to characterize the impact of the reduced optical overlap volume of the GMOT in the chip-scale cell, with an outlook to an optimized atom number in low volume systems.

show abstract

A centilitre-scale vacuum chamber for compact ultracold quantum technologies

Cited by 2 publications

References 0 publications

$Λ$-enhanced gray molasses in a tetrahedral laser beam geometry

$Λ$-enhanced gray molasses in a tetrahedral laser beam geometry

A simple imaging solution for chip-scale laser cooling

Contact Info

Product

Resources

About