Research Fund for the Doctoral Program of Higher Education of ChinaResearch Fund for the Doctoral Program of Higher Education of China (RFDP)Specialized Research Fund for the Doctoral Program of Higher Education (SRFDP) [20100162110068]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [61275174]; Postgraduate Technology Innovation Project of Central South University [2016zzts017]
机构署名：
本校为其他机构
院系归属：
信息与电子工程学院
摘要：
A nanoscale plasmonic filter based on a single-stub coupled metal-dielectric-metal waveguide system is investigated theoretically and numerically. A tunable wide band-stop can be achieved by loading a metal bar into the stub. The band-stop originates from the direct coupling between the resonance modes. The bandwidth and the center wavelength of the band-stop can be tuned by changing the parameters of the metal bar. Compared with previously reported filters, the plasmonic system has the advantages of easy fabrication and compactness. Our result...
