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Homework Help: Deriving ellipsometric parameters

  1. Nov 19, 2013 #1
    1. The problem statement, all variables and given/known data
    n²=sin²θ+tan²θ sin²θ ((1-p)/(1+p))²
    n=n2/n1

    with p=r/r'

    θ=θI θ'=θT
    r=r// r'=r perpendicular
    2. Relevant equations
    http://imageshack.com/a/img542/4321/bqxi.png [Broken]


    3. The attempt at a solution
    I used the second formulas, starting by replacing n2 by n*n1 and calculate ( here nt=n2 and ni=n1)
    [(1-p)/(1+p)]²=(1-n²)cos²θcos²θ'/(n²(cos²θ-cos²θ'))
    I multiplied by tan²θ sin²θ
    =(1-n²)sin4θcos²θ'/(n²(cos²θ-cos²θ')²)
    Then I added sin²θ but i can't find a way to simplify all that, i've been doing this for more than a hour and i'm really stuck..
    Thanks
     
    Last edited by a moderator: May 6, 2017
  2. jcsd
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