Terahertz surface plasmon polaritons on a helically grooved wire

2008/10/06 by Antonio I. Fernández‐Domínguez, A. I. Fernández-Domínguez, Christopher R. Williams +8 · 2 citations
Engineering · #Plasmonic and Surface Plasmon Research #Terahertz technology and applications #Photonic and Optical Devices

paper · doi:10.1063/1.2988897

Abstract

The propagation of tightly confined terahertz surface plasmon polaritons on a helically grooved metal wire has been studied both experimentally and theoretically. The periodic structure of such metawires allows the formation of surface electromagnetic modes with different azimuthal symmetry at wavelengths longer than the pitch. There is good agreement between the experimentally determined band edge frequencies of these modes and numerical calculations for the structure investigated.

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• Fully Metal-Coated Scanning Near-Field Optical Microscopy Probes with Spiral Corrugations for Superfocusing under Arbitrarily Oriented Linearly Polarised Excitation. [europepmc]
• Surface Wave Enhanced Sensing in the Terahertz Spectral Range: Modalities, Materials, and Perspectives. [europepmc]

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