Phase change

  1. Consider a plane beam of light is falling normally on a material with thickness (d) and refractive index (n), the light partially transmits and partially reflects the light, so the light transmitting the light travels a distance (2nd) coming out of the material have a phase change of ∏ always, How? will it be different for different thickness?
    If no why the phase change can't be ∏/2 or 2∏ or something else?
     
  2. jcsd
  3. Simon Bridge

    Simon Bridge 14,924
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    There is usually a phase change associated with reflection - either zero or pi, depending on the refractive index either side of the surface.

    The phase shift for light traversing a medium depends on the thickness of the medium and the refractive index.
     
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