Deep subwavelength terahertz waveguides using gap magnetic plasmon

Atsushi Ishikawa, Shuang Zhang, Dentcho A. Genov, Guy Bartal, Xiang Zhang

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74 Citations (Scopus)


We propose a novel subwavelength terahertz (THz) waveguide based on the magnetic plasmon polariton mode guided by a narrow gap in a negative permeability metamaterial. Deep subwavelength waveguiding (<λ/ 10) with group velocities down to c/21.8 is demonstrated in a straight waveguide, a 90° bend, and a splitter. The proposed waveguiding system inherently has no cutoff for any core width and height, paving the way toward the deep subwavelength transport of THz waves for integrated THz device applications.

Original languageEnglish
Article number043904
JournalPhysical Review Letters
Issue number4
Publication statusPublished - Jan 26 2009


ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Ishikawa, A., Zhang, S., Genov, D. A., Bartal, G., & Zhang, X. (2009). Deep subwavelength terahertz waveguides using gap magnetic plasmon. Physical Review Letters, 102(4), [043904].