FDTD Analysis of a Terahertz Waveguide Polarizer

Abstract

The use of terahertz (THz) waves is attracting attention for high-speed wireless communications. THz waves have also been utilized as an input wave for surface plasmon resonance (SPR) sensors. We have investigated an SPR waveguide sensor to detect not only a temperature change of water but also a mixture of an organic solvent and water [1] . In addition, we have studied Kretschmann- and Otto-type SPR waveguide sensors in the terahertz regime [2] , showing a high sensitivity compared to the conventional SPR waveguide sensor.