# I Hyperpolarizability and second order susceptibility

1. May 11, 2016

### Konte

Hello everybody,

My question is about nonlinear optic in both macroscopic and microscopic point of view.

What is the relationship between second order susceptibility tensor $\chi^{(2)}$ and the first hyperpolarizability tensor $\beta$ ?

Thank you everybody.
Konte.

2. May 12, 2016

### DrDu

3. May 13, 2016