THz surface plasmon reflection on a corrugated metal surface

摘要

Bragg reflection of THz surface plasmon (SP) on a grating is studied using SP broadband excitation by a prism. The SP spectra transmitted by the grating exhibit minima thanks to the Bragg effect, while the reflected signals show corresponding peaks. Reflection efficiency and bandwidth of these Bragg zones are studied for different grating groove shapes and experimental schemes.