Wave Polarization

(5.56) | ||

(5.57) |

In terms of complex amplitudes, this becomes

(5.58) |

Similarly, a left-handed circularly polarized wave is characterized by

(5.59) |

The polarization of the transverse electric field is obtained from the middle line of Equation (5.42):

(5.60) |

For the case of parallel propagation, with , the previous formula yields . Similarly, for the case of parallel propagation, with , we obtain . Thus, it is clear that the roots and in Equations (5.51)-(5.53) correspond to right- and left-handed circularly polarized waves, respectively.