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Fig. 9
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(a) The top view of high-Q plasmonic waveguide with corrugated disk resonator system, which is divided into three comparatively independent regions (I, II and III). (b) Part I: the CPW region. (c) Part II: the convertor, which converts QTEM mode to spoof mode. (d) Part III: plasmonic waveguide with corrugated disk resonator.