It's not very difficult to conceive and to How is this lightĮnergy transported by an electromagnetic wave? Let's assume you know the electrical field E 0: how large is the magnetic field H 0 associated with it?īrings along is E Ph=h n.How large (roughly) is it for one photon of a given How large, in V/cm, is the electrical field E 0.Is the electrical and magnetic field really in phase as shown above?.How do I describe polarization in the particle picture?.What happens if E 0 H 0 are not parallel to D 0 B 0,.Can polarization be described by a vector? Could I just use a unit vector in E 0-direction?.Then a few questions should come up, for example: In a Master study course, however, you now ponder the picture and the equations above for a Usually we don't bother to go muchĭeeper at this point. H-field amplitude in z-direction given by H 0.E-field amplitude in y-direction given by E 0.Propagation direction= k direction= Poynting vector S direction= x direction here.With the relevant vector quantities, we see that in this case:

Looking for example at a picture we had before but now augmented The electrical field vector (or the electrical displacement vector D in material) thus isĬontained in some plane (the polarization plane) that contains the direction of Light as a wave, by definition, is polarized since an arbitrary light wave can always be decomposed into plane waves describedĮ( r, t)= E 0exp and the corresponding expression for the magnetic field. 5.1.4 Energy Flow, Poynting Vector and Polarization 5.1.4 Energy Flow, Poynting Vector and

Intensity of polarized light equation