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In this paper, lifetime enhancement in a microstrip photonic crystal (PC) cavity by embedding electromagnetic-induced-transparency (EIT)-like meta-atoms is reported. Both microwave experiments and numerical simulations confirm that cavity lifetime can be lengthened about four times, with enhanced Q-factor simultaneously. Further study on electromagnetic field distribution reveals that these enhancements...
In this paper, efficient arbitrary angle bends based on impedance-matched zero-index metamaterials (ZIMs) are proposed. Numerical simulations on ZIM-based bends are carried out in waveguide systems. The results show clearly that electromagnetic waves can tunnel through the ZIM-based bends with high transmittance at any bending angles. Moreover, a realistic ZIM-based bends are designed and fabricated...
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