One of the most accurate formulas for dispersion is the Sellmeier equation:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]n^2(\lambda) = 1 + \sum_i \frac{B_i \lambda^2}{\lambda^2 - C_i}[/tex]

Dispersion does not arise with Huygen's Principle.

Is there a theoretical model that describes dispersion and explains why Sellmeier's equation takes the form that it does?

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# I Theoretical explanation for Dispersion? (Sellmeier)

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