Spectroscopy and frequency measurement of the ${}^{87}$Sr clock transition by laser linewidth transfer using an optical frequency comb

Daisuke Akamatsu, Hajime Inaba, Kazumoto Hosaka +5

We perform spectroscopic observations of the 698-nm clock transition in ${}^{87}$Sr confined in an optical lattice using a laser linewidth transfer technique. A narrow-linewidth lase…