Bandarupally, Satvika, Tinsley, Jonathan N 
ORCID: 0000-0002-4925-9350, Chiarotti, Mauro and Poli, Nicola
(2023)
Design and simulation of a source of cold cadmium for atom interferometry.
Journal of Physics B: Atomic, Molecular and Optical Physics, 56 (18).
p. 185301.
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Abstract
<jats:title>Abstract</jats:title> <jats:p>We present a novel optimised design for a source of cold atomic cadmium, compatible with continuous operation and potentially quantum degenerate gas production. The design is based on spatially segmenting the first and second-stages of cooling with the strong dipole-allowed <jats:sup>1</jats:sup>S<jats:sub>0</jats:sub>-<jats:sup>1</jats:sup>P<jats:sub>1</jats:sub> transition at 229 nm and the 326 nm <jats:sup>1</jats:sup>S<jats:sub>0</jats:sub>-<jats:sup>3</jats:sup>P<jats:sub>1</jats:sub> intercombination transition, respectively. Cooling at 229 nm operates on an effusive atomic beam and takes the form of a compact Zeeman slower (∼5 cm) and two-dimensional magneto-optical trap (MOT), both based on permanent magnets. This design allows for reduced interaction time with the photoionising 229 nm photons and produces a slow beam of atoms that can be directly loaded into a three-dimensional MOT using the intercombination transition. The efficiency of the above process is estimated across a broad range of experimentally feasible parameters via use of a Monte Carlo simulation, with loading rates up to 10<jats:sup>8</jats:sup> atoms s<jats:sup>−1</jats:sup> into the 326 nm MOT possible with the oven at only 100 <jats:sup>∘</jats:sup>C. The prospects for further cooling in a far-off-resonance optical-dipole trap and atomic launching in a moving optical lattice are also analysed, especially with reference to the deployment in a proposed dual-species cadmium-strontium atom interferometer.</jats:p>
| Item Type: | Article |
|---|---|
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 19 Sep 2023 09:36 |
| Last Modified: | 19 Sep 2023 09:36 |
| DOI: | 10.1088/1361-6455/acf3bf |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3172882 |
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