• DocumentCode
    3691537
  • Title

    Terahertz electro-optic properties of PbZr0.52Ti0.48O3 and BaTiO3 ferroelectric thin films

  • Author

    Lei Chen;Yuan Zhang;Quan Guo;Dong-wen Zhang;Xiang-li Zhong;Xiao-wei Wang;Zhi-hui Lv;Chao Meng;Yin-dong Huang;Yi-lei Ge;Jian-min Yuan

  • Author_Institution
    Department of Physics, National University of Defense Technology, Changsha 410073, China
  • fYear
    2015
  • Firstpage
    1
  • Lastpage
    1
  • Abstract
    Electro-optic effects of PbZr0.52Ti0.48O3(PZT) and BaTiO3(BTO) ferroelectric thin films in the terahertz frequency range are studied with high-sensitive terahertz time-domain spectroscopy (THz-TDS). A linear response of PZT film with the linear electro-optic coefficient rc=6.73×10-11 m/V, and a quadratic response of BTO film with the second-order electro-optic coefficient Rc=1.42×10-17 m2/V2, are observed at the frequency of 1 terahertz under the applied static electric field less than 80 kV/cm. The calculation of rc and Rc based on the Landau-Devonshire free energy theory explains the different electro-optic effects of PZT and BTO well.
  • Keywords
    "Electrooptic effects","Films","Electric fields","Electrooptic modulators","Electrooptical waveguides","Time-frequency analysis"
  • Publisher
    ieee
  • Conference_Titel
    Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on
  • ISSN
    2162-2027
  • Electronic_ISBN
    2162-2035
  • Type

    conf

  • DOI
    10.1109/IRMMW-THz.2015.7327753
  • Filename
    7327753
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3691537