Related Experiment Video
Updated: Apr 6, 2026

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
Published on: January 3, 2016
Hyperbolic Plasmons and Topological Transitions Over Uniaxial Metasurfaces
J Sebastian Gomez-Diaz1, Mykhailo Tymchenko1, Andrea Alù1
1Department of Electrical and Computer Engineering, The University of Texas at Austin, 1616 Guadalupe Street, UTA 7.215, Austin, Texas 78701, USA.
Abstract:
We explore the unusual electromagnetic response of ultrathin anisotropic σ-near-zero uniaxial metasurfaces, demonstrating extreme topological transitions--from closed elliptical to open hyperbolic--for surface plasmon propagation, associated with a dramatic tailoring of the local density of states. The proposed metasurfaces may be implemented using nanostructured graphene monolayers and open unprecedented venues for extreme light confinement and unusual propagation and guidance, combined with large tunability via electric bias.
Related Concept Videos
Gauss's Law: Planar Symmetry
Equipotential Surfaces and Conductors
Hyperbolas
Equipotential Surfaces and Field Lines
Geometry of Hyperbolas
Plane Electromagnetic Waves I
The EM field is assumed to be a...

