- #1
KFC
- 488
- 4
In some unit, the relation of (linear) polarization and susceptibility can be written of
[tex]P(t) = \chi E(t)[/tex]
but I also read some expression in other text reads
[tex]P(\omega) = \chi(\omega) E(\omega)[/tex]
why change the time to frequency? Why polarization depends on frequency?
[tex]P(t) = \chi E(t)[/tex]
but I also read some expression in other text reads
[tex]P(\omega) = \chi(\omega) E(\omega)[/tex]
why change the time to frequency? Why polarization depends on frequency?