Surface plasmon polaritons in topological insulator
arXiv:1404.4706 · doi:10.1103/PhysRevB.89.155420
Abstract
We study surface plasmon polaritons on topological insulator-vacuum interface. When the time-reversal symmetry is broken due to ferromagnetic coupling, the surface states exhibit magneto-optical Kerr effect. This effect gives rise to a novel transverse type surface plasmon polariton, besides the longitudinal type. In specific, these two types contain three different channels, corresponding to the pole of determinant of Fresnel reflection matrix. All three channels of surface plasmon polaritons display tight confinement, long lifetime and show strong light-matter coupling with a dipole emitter.
arXiv comment6 pages, 4 figures
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- Tunable Surface Plasmon Polaritons in a Weyl Semimetal Waveguide
- Controlling surface charge and spin density oscillations by Dirac plasmon interaction in thin topological insulators
- Strong coupling between a topological insulator and a III-V heterostructure at terahertz frequency
- Phonon-mediated strong coupling between a three-dimensional topological insulator and a two-dimensional antiferromagnetic material
- Surface plasmon polaritons in a waveguide composed of Weyl semimetals with different symmetries
- Topological Surface-plasmon-polaritons on Corrugated Metal-dielectric Surfaces
- Control of Plasmons in Doped Topological Insulators via Basis Atoms