Plasmonics in topological insulators

Yi Ping Lai, I. Tan Lin, Kaung-Hsiung Wu, Jia Ming Liu*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

25 Scopus citations


With strong spin-orbit coupling, topological insulators have an insulating bulk state, characterized by a band gap, and a conducting surface state, characterized by a Dirac cone. Plasmons in topological insulators show high frequency-tunability in the mid-infrared and terahertz spectral regions with transverse spin oscillations, also called "spin-plasmons". This paper presents a discussion and review of the developments in this field from the fundamental theory of plasmons in bulk, thin-film, and surface-magnetized topological insulators to the techniques of plasmon excitation and future applications.

Original languageEnglish
Article number13
JournalNanomaterials and Nanotechnology
Issue number1
StatePublished - 1 Jan 2014


  • Plasmons
  • Spin-orbit interaction
  • Topological insulator


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