• DocumentCode
    145716
  • Title

    Terahertz plasmonic excitations in Bi2Se3 topological insulator

  • Author

    Di Pietro, P. ; Autore, M. ; D´Apuzzo, F. ; Di Gaspare, Alessandra ; Giorgianni, F. ; Limaj, O. ; Oh, Sung-Min ; Lupi, S.

  • Author_Institution
    Sincrotrone Trieste S.C.p.A., Trieste, Italy
  • fYear
    2014
  • fDate
    25-28 Aug. 2014
  • Firstpage
    376
  • Lastpage
    378
  • Abstract
    Plasmons in the terahertz (THz) range have been observed in Bi2Se3 topological insulator films patterned in form of microstructures. These plasmons have been assigned to collective excitations of massless Dirac carriers located onto the Bi2Se3 topological surfaces. Their lifetime is mainly determined by the single-particle scattering rate and results scarcely dependent on temperature as expected for topological carriers.
  • Keywords
    electromagnetic wave scattering; insulators; plasmonics; plasmons; Bi2Se3; massless Dirac carriers; microstructures; plasmons; single-particle scattering rate; terahertz plasmonic excitations; topological carriers; topological insulator films; topological surfaces; Dispersion; Graphene; Optical films; Optical polarization; Plasmons; Topological insulators;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2014 8th International Congress on
  • Conference_Location
    Lyngby
  • Print_ISBN
    978-1-4799-3450-8
  • Type

    conf

  • DOI
    10.1109/MetaMaterials.2014.6948565
  • Filename
    6948565
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=145716