![Fig. 3.11 — Complex polarisability](https://i0.wp.com/opticaltweezers.org/wp-content/uploads/2015/11/Fig3_11.png?fit=660%2C275)
Real (solid line) and imaginary (dashed line) parts of the complex atomic polarisability αe(ω) [Eq. (3.62)] of an atom as a function of the angular frequency ω. ωR = 1016 rad/s (corresponding to λR = 188 nm) and γe = 1015 rad/s. The order of magnitude of these values is realistic even though they do not correspond to any specific atom. Note that the frequency axis is logarithmic.
Fig. 3.11 — Complex polarisability