• DocumentCode
    1675066
  • Title

    Dynamics of coherent optical phonons in a Bi2Se3 crystal

  • Author

    Norimatsu, Katsura ; Hu, Jianbo ; Goto, Arihiro ; Igarashi, Kyushiro ; Sasagawa, Takao ; Nakamura, Kazutaka G.

  • Author_Institution
    Mater. & Struct. Lab., Tokyo Inst. of Technol., Yokohama, Japan
  • fYear
    2012
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    Coherent A1g1, A1g2, and Eg2 phonons in Bi2Se3 are observed using ultrafast spectroscopy. Their initial phases suggest different coupling strengths with photo-excited electrons. Their decay rates per oscillations are almost the same.
  • Keywords
    bismuth compounds; electron-phonon interactions; high-speed optical techniques; oscillations; photoexcitation; photoreflectance; semiconductor materials; stimulated Raman scattering; time resolved spectra; coherent A1g1 phonons; coherent A1g2 phonons; coherent Eg2 phonons; coherent optical phonon dynamics; coupling strengths; decay rates; electron-phonon couplings; femtosecond time-resolved reflection measurement; oscillations; photoexcited electrons; semiconductor materials; stimulated Raman scattering; ultrafast spectroscopy; Crystals; Laser beams; Measurement by laser beam; Oscillators; Phonons; Reflectivity; Ultrafast optics;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Lasers and Electro-Optics (CLEO), 2012 Conference on
  • Conference_Location
    San Jose, CA
  • Print_ISBN
    978-1-4673-1839-6
  • Type

    conf

  • Filename
    6326463
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1675066