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We propose a type of photonic heterostructure by combining dielectric one-dimensional (1D) defective photonic crystals (PCs) and magnetic 1D defective PCs. Both of the two PCs consist of alternating positive-index-material (PIM) layers with a negative-index-material (NIM) defect layer. It is demonstrated by transfer matrix method that there is a polarization- and direction-independent defect mode...
The imaging properties of photonic crystals (PCs) with effective negative refraction indexes are studied by the finite-difference time-domain (FDTD) method. The images resulting from a PC are the results of the interaction of multiple mechanisms. The superlens phenomena are restricted within some special conditions, such as low source frequency, excitation of surface mode and little effect of Bragg...
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