• DocumentCode
    732669
  • Title

    Quantum interference control of photocurrents in topological insulator films

  • Author

    Bas, D.A. ; Vargas-Valez, K. ; Babakiray, S. ; Johnson, T.A. ; Ledereman, D. ; Stanescu, T.D. ; Bristow, A.D.

  • Author_Institution
    Dept. of Phys. & Astron., West Virginia Univ., Morgantown, WV, USA
  • fYear
    2015
  • fDate
    10-15 May 2015
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    Charge currents in thin films of Bi2Se3 are controlled using a two-color scheme that exploits quantum interference of single- and two-photon absorption pathways. Injection and shift currents are observed and linked to surface state excitations.
  • Keywords
    bismuth compounds; optical films; photoconductivity; quantum interference phenomena; quantum optics; topological insulators; two-photon processes; Bi2Se3; charge currents; injection currents; photocurrents; quantum interference control; shift currents; single-photon absorption pathways; surface state excitations; topological insulator films; two-color scheme; two-photon absorption pathways; Films; Nonlinear optics; Optical polarization; Optical surface waves; Photoconductivity; Surface waves; Topological insulators;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Lasers and Electro-Optics (CLEO), 2015 Conference on
  • Conference_Location
    San Jose, CA
  • Type

    conf

  • Filename
    7183105
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=732669