Investigation on the Cs 6S1=2 to 7D electric quadrupole transition via monochromatic two-photon process at 767 nm

Sandan Wang, Jinpeng Yuan, Lirong Wang +2

We experimentally demonstrate the cesium electric quadrupole transition from the 6S1/2 ground state to the 7D3/2,5/2 excited state through a virtual level by using a single laser a…