Sub-Doppler spectroscopy of the strontium intercombination line in a microfabricated vapor cell
Year: 2025
Type: article
Abstract: We report a 100 kHz linewidth for the 1 S 0 to 3 P 1 intercombination line of 88 Sr atoms at 689 nm in a microfabricated (9×14×4.4) mm 3 vapor cell. This puts an upper bound on the residual gas pressure in the vapor cell of 10 mTorr. The microfabricated Sr vapor cell offers an inexpensive and scalable way to lock lasers in state-of-the-art cold-atom-based atomic clocks and quantum computing experiments. It also paves the way for compact and precise optical frequency references based on alkaline earth vapor cells.
Source: Optics Letters
DOI: 10.1364/ol.579933
Authors: Yang Li, John Kitching, Matthew T. Hummon
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4417130043