Excitation of channel plasmons in V-shaped grooves in the Kretschmann configuration

Excitation of channel plasmons in a 1D array of V-shaped grooves in a metal film in the Kretschmann configuration was theoretically investigated. The channel plasmons were shown to be excited by the s-polarized incident wave. The excitation of channel plasmons in every single groove of the array manifested itself in a local minimum in the angular spectrum of reflection from the array of the grooves.