Shifting the phase of a coherent beam with a ${}^{174}$Yb${}^{+}$ ion: influence of the scattering cross section

Martin Fischer, Bharath Srivathsan, Lucas Alber +3

We discuss and measure the phase shift imposed onto a radially polarized light beam when focusing it onto an ${}^{174}{\text{Yb}}^{+}$ ion. In the derivation of the expected phase shif…