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Transmission, internal reflection

  1. Nov 18, 2013 #1
    Hello,
    1. The problem statement, all variables and given/known data
    Consider two semi-infinite mediums of refractive index n=1.5, separated by an empty space of width d.
    The surfaces of the two mediums are //.
    A light beam of λ=633 nm and perpendicular polarisation comes with an angle of incidence θi=43° to the interface between the first medium and the empty space
    What is the transmission factor in the second semi-infinite medium if d = λ0/4 ?
    Use matrix formalism to consider multiples reflections.

    2. Relevant equations
    http://imageshack.com/a/img17/2531/gu44.png [Broken]

    3. The attempt at a solution
    The polarisation is perpendicular so we use t perpendicular
    So we have to find θt.
    We have ton consider the frustrated total internal reflection ?
    I just don't get it at all
    thanks
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
    Last edited by a moderator: May 6, 2017
  2. jcsd
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