Antireflection coatings for two-dimensional photonic crystals using a rigorous impedance definition
- Publication Type:
- Journal Article
- Applied Physics Letters, 2008, 93 (12)
- Issue Date:
We show that no consistent scalar definition of impedance is generally possible for photonic crystals. Instead, we present a rigorous semianalytic matrix definition of impedance for square lattice photonic crystals, defined in terms of Bloch modes. We then apply our definition to design a range of multilayer photonic crystal antireflection coatings efficiently. © 2008 American Institute of Physics.
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