Anisotropic THz plasmonic filter created using K-space design technique

Wireless communication systems in the terahertz frequency range promise to dramatically increase available bandwidth in the electromagnetic spectrum. These wireless systems will require filtering techniques capable of operating in this relatively unused part of the spectrum. In pushing towards more advanced filtering techniques, we demonstrate a terahertz filter design methodology based upon k-space that shows more complex filters. Using this methodology we show a highly anisotropic filter where transmittance is varied by 80 percent with rotation in polarization angle.