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Plane of incidence

  1. Jun 30, 2014 #1
    How to define the plane of incidence for normal incidence of a plane polarized wave?
    Is the reflection coefficient defined by ordinary, extraordinary, or the combination of both waves?

    Thanks for the help!
  2. jcsd
  3. Jun 30, 2014 #2


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    The usual method is to define one line with the wave vector (normal to the plane wave), which is then fixed by a point of incidence at the material surface. The vector normal to the surface at that point gives you a second vector .... these then define the plane of incidence. The k-vector for the reflected wave will be in this plane.

    If the wave vector is normal to the surface there is no unique plane of incidence.
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