Channel plasmon-polaritons: modal shape, dispersion, and losses

Abstract

We theoretically study channel plasmon-polaritons (CPPs) with a geometry similar to that in recent experiments at telecom wavelengths (Bozhevolnyi et al., Nature 440, 508 (2006)). The CPP modal shape, dispersion relation, and losses are simulated using the multiple multipole method and the finite difference time domain technique. It is shown that, with the increase of the wavelength, the fundamental CPP mode shifts progressively towards the groove opening, ceasing to be guided at the groove bottom and becoming hybridized with wedge plasmon-polaritons running along the groove edges.

4 pages, 4 figures

Cited by in corpus (18)

• Coupling of individual quantum emitters to channel plasmons
• Gap and channelled plasmons in tapered grooves: a review
• Plasmonic waveguide-integrated nanowire laser
• Numerical solution of nonlocal hydrodynamic Drude model for arbitrary shaped nano-plasmonic structures using Nédélec finite elements
• Resonant guided wave networks
• Surface-enhanced Raman spectroscopy (SERS): nonlocal limitations
• Channel spaser
• Graphene Plasmons in Triangular Wedges and Grooves
• Geometrically induced modification of surface plasmons in the optical and telecom regimes
• Universal description of channel plasmons in two-dimensional materials
• Mode Properties of Flat-top Silver Nano-ridge Surface Plasmon Waveguides
• Nanostructure design for surface-enhanced Raman spectroscopy - prospects and limits
• Guided Surface Plasmon Mode of Semicircular Cross Section Silver Nanoridges
• Ultra-subwavelength focusing and giant magnetic-field enhancement in a low-loss one-way waveguide based on remanence
• Polaritons in two-dimensional parabolic waveguides
• Guided plasmon modes of triangular and inverted triangular cross section silver nanoridges
• Femtosecond pulse with THz repetition frequency based on strong coupling between quantum emitters and a plasmonic resonator
• On-chip microwave-spin-plasmon interface (MSPI)