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Relation between refractive index and model equation

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Aug25-13, 12:26 AM
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Fact: The refractive index depends on the medium.
Also, in general, to study the pulse propagation in a medium, there is a governing model equation (e.g. Non linear Schrodinger equation).

My question is: Will there be any relation between the model equation and the refractive index? Why?

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Simon Bridge
Aug26-13, 09:36 PM
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What does refractive index tell you? i.e. what is it?
Can you extract that same information from the pulse-propagation study using the governing model equation?

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