Accessing the $5{\mathrm{S}}_{1/2}\to 5{\mathrm{D}}_{5/2}$ two-photon transition in Rb using a diode laser system

Ketan D. Rathod, Vasant Natarajan

We report observation of the $5{\mathrm{S}}_{1/2}\to 5{\mathrm{D}}_{5/2}$ two-photon transition in Rb vapor at 778 nm, using an external cavity diode laser system and a heated vapor cell. T…