Low-loss, infrared and terahertz nanophotonics using surface phonon polaritons

Joshua D. Caldwell, Lucas Lindsay, Vincenzo Giannini, Igor Vurgaftman, Thomas L. Reinecke, Stefan A. Maier, Orest J. Glembocki

Research output: Contribution to journalReview ArticleResearchpeer-review

572 Citations (Scopus)


The excitation of surface-phonon-polariton (SPhP) modes in polar dielectric crystals and the associated new developments in the field of SPhPs are reviewed. The emphasis of this work is on providing an understanding of the general phenomenon, including the origin of the Reststrahlen band, the role that optical phonons in polar dielectric lattices play in supporting sub-diffraction-limited modes and how the relatively long optical phonon lifetimes can lead to the low optical losses observed within these materials. Based on this overview, the achievements attained to date and the potential technological advantages of these materials are discussed for localized modes in nanostructures, propagating modes on surfaces and in waveguides and novel metamaterial designs, with the goal of realizing low-loss nanophotonics and metamaterials in the mid-infrared to terahertz spectral ranges.

Original languageEnglish
Pages (from-to)44-68
Number of pages25
Issue number1
Publication statusPublished - 1 Jan 2015
Externally publishedYes


  • infrared
  • metamaterial
  • nanophotonic
  • phonon polariton
  • plasmonics
  • polar dielectric
  • Reststrahlen
  • terahertz

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