Abstract
A powerful and efficient method based on the Bloch theorem, widely used in solid state physics to model electrons running into a periodic lattice, and recently applied by the authors to model defect-free optical periodic structures, is used to characterize photonic bandgap (PBG) structures incorporating multiple defects, having arbitrary shape and dimensions. The importance of the defect-mode characterization in PBG materials is due to the intensive use of defects for light localization to design optical and microwave devices giving high performances.
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