Graded Metallic Gratings for Ultrawideband Surface Wave Trapping at THz Frequencies

@article{Gan2011GradedMG,
  title={Graded Metallic Gratings for Ultrawideband Surface Wave Trapping at THz Frequencies},
  author={Qiaoqiang Gan and F. J. Bartoli},
  journal={IEEE Journal of Selected Topics in Quantum Electronics},
  year={2011},
  volume={17},
  pages={102-109}
}
We summarize our study of the ultrawideband slow-light system based on plasmonic-graded metallic gratings for “rainbow” trapping at terahertz (THz) frequencies. The dispersion relations for a perfect conducting plane hosting an array of 1-D grooves having a constant depth were derived. Since the dispersion relations for the fundamental surface mode resemble those for the surface plasmon polaritons (SPPs) at optical frequencies, such a uniform grating can be used to effectively guide THz waves… CONTINUE READING