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Ray transfer martix of interface

  1. May 26, 2009 #1
    I found two different descriptions about ray transfer martix of interface in two textbook. I am confused about this. which one is correct? I hope someone can help me.

    A:Lasers, A.E.Siegman,pp586
    B:Laser Resonators and Beam Propagation, N.Hodgson, pp16

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  2. jcsd
  3. May 26, 2009 #2

    Andy Resnick

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    Siegman's is the one I am used to seeing- that is the refraction matrix written out using the paraxial approximation and the (y, nu) form for rays. I don't immediately see how to transform Siegman's into Hodgson's, but maybe Hodgson is using a different ray notation?
  4. May 27, 2009 #3
    I check these two descriptions again, and I found that the difference may be caused by the understanding about optical path.

    example:Plane Dielectric Slab

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