Time average of harmonic power
= Time average of harmonic power
For real harmonic fields with complex amplitudes $\widehat p$ and $\widehat u$, their period-averaged product is $\operatorname{Re}(\widehat p\widehat u^*)/2$.
= Time average of harmonic power
For real harmonic fields with complex amplitudes $\widehat p$ and $\widehat u$, their period-averaged product is $\operatorname{Re}(\widehat p\widehat u^*)/2$.