Excitation of anti-symmetric coupled spoof SPPs in 3D SIS waveguides based on coupling
Tian Li-li1, Chen Yang2, Liu Jian-long1, Guo Kai1, Zhou Ke-ya1, Gao Yang3, Liu Shu-tian1, †,
       

The Hy and Ey profiles of a unit cell of the SIS waveguide for the coupled SSPPs: (a) Hy profile of the symmetric coupled mode, (b) Ey profile of the symmetric coupled mode, (c) Hy profile of the anti-symmetric coupled mode, (d) Ey profile of the anti-symmetric coupled mode.