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Updated: Jan 17, 2026

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization
Published on: August 6, 2018
Sub-Doppler spectroscopy of the strontium intercombination line in a microfabricated vapor cell
Abstract:
We report a 100 kHz linewidth for the 1S0 to 3P1 intercombination line of 88Sr atoms at 689 nm in a microfabricated (9×14×4.4) mm3 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.
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