Fresnel Equation math problem

  • Thread starter Cummings
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I am trying to derive the Fresnel equations for the E field perpendicular to the plane of incidence.

There is one transformation, I assume involves some general math, that I am having a mental blank on.

It can be found here if you scroll down to Equation 7.17, they simply state that combining it with Equation 7.14 you can achieve 7.18, the fresnel equation.

I assuming this is just some substitution and re araging but for the life of me I am unable to figure out how they did. it.

Enlighten me.
BSc: Photonics
BEng: Telecommunications and Internet Technologies.
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I can't open that link. Will you double-check ?
Gokul43201 said:
I can't open that link. Will you double-check ?
hmm.. the link works for me.

sorry, can't help ya, but may i ask, what class is this for? EM II or optics or something? fairly interesting.

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