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Electrical and electronic engineering
A technique for photonic band gap (PBG) extension based on mixing photonic crystals with different lattice constants or filling factors is suggested. For the design of photonic crystals with maximal PBG extension the gap map imposition method is utilized. Gap maps for composite photonic crystals based on Si-air structures are calculated and used to predict optimal structures for fabrication.
Tolmachev, V.A., Perova, T.S. and Kevin Berwick: Design of One-Dimensional Composite Photonic Crystals with an Extended Photonic Band Gap. Journal of Applied Physics, Vol. 99, issue 3, 2006. doi:10.1063/1.2165401