• DocumentCode
    732743
  • Title

    Generalized three-dimensional Dirac points and Z2 gapless surface states in a topological photonic crystal

  • Author

    Ling Lu ; Chen Fang ; Hsieh, Timothy H. ; Liang Fu ; Johnson, Steven G. ; Joannopoulos, John D. ; Soljacic, Marin

  • Author_Institution
    Dept. of Phys., Massachusetts Inst. of Technol., Cambridge, MA, USA
  • fYear
    2015
  • fDate
    10-15 May 2015
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    We discover robust three-dimensional generalized Dirac points - linear four-fold point degeneracies - in a non-symmorphic photonic crystal realizable at near-infrared wavelengths. The surface states exhibit gapless line-nodes characterized by a Z2 topological invariant.
  • Keywords
    photonic band gap; photonic crystals; surface states; topological insulators; Z2 gapless surface states; Z2 topological invariant; gapless line-nodes; linear four-fold point degeneracy; near-infrared wavelengths; nonsymmorphic photonic crystal; three-dimensional generalized Dirac points; topological photonic crystal; Lattices; Mirrors; Optical surface waves; Photonic crystals; Photonics; Scattering; Three-dimensional displays;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Lasers and Electro-Optics (CLEO), 2015 Conference on
  • Conference_Location
    San Jose, CA
  • Type

    conf

  • Filename
    7183180
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=732743