Sub-Doppler spectroscopy of the strontium intercombination line in a microfabricated vapor cell

Yang Li, John Kitching, Matthew T. Hummon

We report a 100 kHz linewidth for the 1S0 to 3P1 intercombination line of 88Sr atoms at 689nm in a microfabricated 9x14 x4.4 mm3 vapor cell. This puts an upper bound on the residua…