Abstract.
Epsilon-negative (ENG) and mu-negative (MNG) materials are successfully realized by using composite right/left-handed transmission line (CRLH TL), based on which the photonic crystals were also constituted. The simulated and measured scattering parameters and phase shift indicate that the photonic crystals containing single-negative (SNG) materials can possess zero-effective phase (zero-Øeff) gaps, which are insensitive to the scaling change of the respective unit length. The width and depth of zero-Øeff gaps can be adjusted by varying the ratio of the length of ENG and MNG materials. The characteristics can be utilized to design a compact high quality factor (high-Q) filter, which is demonstrated by a defect mode in the photonic crystals in experiments.
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Zhang, L., Zhang, Y., He, L. et al. Experimental investigation on zero-Øeff gaps of photonic crystals containing single-negative materials. Eur. Phys. J. B 62, 1–6 (2008). https://doi.org/10.1140/epjb/e2008-00116-y
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DOI: https://doi.org/10.1140/epjb/e2008-00116-y