Giant transmission Goos–Hänchen shift in surface plasmon polaritons excitation and its physical origin*
Yang Yang, Liu Ju, Li Zhi-Yuan†
       
(a) Schematic of the Kretschmann prism setup used to excite SPPs by a p-polarized focused Gaussian beam incident onto the Ag layer. (b) Calculated paraxial reflectance | γ p|2 as a function of the incident angle θ 1 for different thicknesses of the Ag layer.