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Progress towards ultracold Sr for the AION project -- sub-microkelvin atoms and an optical-heterodyne diagnostic tool for injection-locked laser diodes
- Publication Year :
- 2023
-
Abstract
- Long-baseline atom interferometers, such as the one to be built by the AION collaboration, require ultra-cold atomic clouds. These are produced by trapping the atoms in Magneto-Optical Traps (MOTs) using high-power, narrow-linewidth lasers. We report on the laser and optical master-slave injection locked system used to address the 1S0 - 3P1 strontium transition at 689 nm, and on the trapping of strontium atoms in a narrowband MOT. We demonstrate the quality of the injection through the characterisation of the injection lock using a novel, easy-to-assemble method which uses a double pass acousto-optic modulator (AOM) to generate and detect a heterodyne beatnote. The reported system is used to produce an atomic cloud at a temperature of 812 +/- 43 nK in a narrowband red MOT.
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.2310.08500
- Document Type :
- Working Paper