For propagation in a periodic dielectric crystal i can by combining Maxwells equations under certain conditions get:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]

\bold{\nabla}\times{1\over\epsilon(\bold{x})}\bold{\nabla}\times\bold{H}=\left({\omega\over{c}}\right)^2\bold{H}

[/tex]

I can apply Bloch-Floquet theorem and then draw a lot of conclusion.

Where does Bloch-Floquet theorem come from, when can I apply it and how can it be explained?

Please help or give references to where i can read about it.

Thanks!

/Daniel

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# Bloch functions

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