Exceptional compound plasmon-polariton waves

Akhlesh Lakhtakia, Chenzhang Zhou, Tom G. Mackay

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Ordinarily, a trimaterial structure comprising a sufficiently thin metal film interposed between two homogeneous dielectric materials guides compound plasmon-polariton (CPP) waves, for which the fields on both sides of the metal film decay exponentially with distance from the nearest metal/dielectric interface. However, if one of the dielectric materials is anisotropic, then the trimaterial structure can guide an exceptional CPP wave for a particular propagation direction. On the side of the metal film occupied by the anisotropic dielectric material, the fields of the exceptional CPP wave decay as the product of a linear function and an exponential function of the distance from the nearest metal/dielectric interface. The canonical boundary-value problem for CPP-wave propagation has been analyzed and solved numerically; thereby, the spatial field profiles for exceptional CPP waves for a uniaxial-dielectric/metal/isotropic-dielectric structure have been established.

Original languageEnglish (US)
Pages (from-to)748-761
Number of pages14
JournalOSA Continuum
Issue number2
StatePublished - Feb 15 2021

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Exceptional compound plasmon-polariton waves'. Together they form a unique fingerprint.

Cite this