# Resonant and Non Resonant Susceptibility

1. Oct 20, 2008

### n0_3sc

The imaginary part of the $$\chi ^3$$ susceptibility can be split into the resonant and non resonant contributions.
The resonant is the contribution from satisfying a resonant vibrational state/mode, but what contributes to the non resonant term?

2. Oct 21, 2008

### olgranpappy

everything else, apparently.