Frequency stabilization of a 650 nm laser to I${}_2$ spectrum for trapped ${}^{138}$Ba${}^{+}$ ions

Tian Xie, Naijun Jin, Ye Wang +4

The optical manipulation of Ba${}^{+}$ ions is mainly performed by a 493 nm laser for the S${}_{1/2}$-P${}_{1/2}$ transition and a 650 nm laser for the P${}_{1/2}$-D${}_{3/2}$ transition. Si…