Phonon-related properties to be extracted

-  polarizability (alpha(re, im)), dielectric (epsilon(re, im)) and first-order electric susceptibility (chi(1)) tensors (independent components)

- first hyperpolarizability (beta) and second electric susceptibility (chi(2)) tensors (independent components)
 
- second hyperpolarizability (gamma) and third electric susceptibility (chi(3)) tensors