Project supported by the Specialized Research Fund for Doctoral Program of Higher Education of China (Grant No.20100185110022);the National Basic Research Program of China (Grant No. 2007CB310401);the Fundamental Research Funds for the Central Universities of Ministry of Education of China (Grant No. ZYGX2011J037)
Recently, the single metal wire (SW) has become attractive for its potential applications in the terahertz and higher frequency range. However, as the most simple and typical surface plasmon polariton (SPP) transm...