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G. Boedecker and C. Henkel
All-frequency effective medium theory for a photonic crystal
Opt. Express 11 (2003) 1590-95


    We consider light propagation in a finite photonic crystal. The transmission and reflection from a one-dimensional system are described in an effective medium theory, which reproduces exactly the results of transfer matrix calculations. We derive simple formulas for the reflection from a semi-infinite crystal, the local density of states in absorbing crystals, and discuss defect modes and negative refraction.

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