Nanjing University IN Surface plasmon polariton (SPP) From Maxwell's Eqs,we can get the wave equation V2E +keE =0, Considering the waveguide modes in x direction,then 82E, +(k6e-B2)E,=0. 02H,+(e-B門H,=0 82 1 Hy =i- aEy Ex=-i- 1H u08z e088z H2= E:= B ωUo ωeoe For TE mode For TM mode Dielectrie Superlattice Laboratory Nat.Lab.Microstructures Dr.Tao Li taoli@nju.edu.cnNanjing University From Maxwell From Maxwell s ’ Eqs, we can get the wave equation Considering the waveguide modes in x direction, then For TE mode For TM mode Dielectric Superlattice Laboratory Nat. Lab. Microstructures Dr. Tao Li taoli@nju.edu.cn