(Solved): Exercise 4 - Emission of a dipolar wave (only if presented in lecture, otherwise next week) Sketch ...
Exercise 4 - Emission of a dipolar wave (only if presented in lecture, otherwise next week) Sketch 4 different emission stages of a dipole, which can reach a maximum dipole moment Po= q.xo. Similar to the sketch of figure 4 in the script draw the dipole moments p = q.x for the displacement progress x = [0, xa/2, Xo, xa/2, 0 -xo/2] together with the electric field lines establishing the dipole field. Draw all field lines with positive electric fields in one color, all field lines with a negative electric field in another color, so that the wave nature becomes visible. muco G 2
Answer :- Radiation emitted by an electric dipole consists of traveling and evanescent plane waves. Usually, only the traveling waves are observable by a measurement in the far field, since the evanescent waves die out over a length of approximately