1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Phase change

  1. Aug 21, 2014 #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. Aug 21, 2014 #2

    Simon Bridge

    User Avatar
    Science Advisor
    Homework Helper

    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.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook