Terahertz electro-optic properties of PbZr0.52Ti0.48O3 and BaTiO3 ferroelectric thin films
- Resource Type
- Conference
- Authors
- Chen, Lei; Zhang, Yuan; Guo, Quan; Zhang, Dong-wen; Zhong, Xiang-li; Wang, Xiao-wei; Lv, Zhi-hui; Meng, Chao; Huang, Yin-dong; Ge, Yi-lei; Yuan, Jian-min
- Source
- 2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on. :1-1 Aug, 2015
- Subject
- Communication, Networking and Broadcast Technologies
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Electrooptic effects
Films
Electric fields
Electrooptic modulators
Electrooptical waveguides
Time-frequency analysis
- Language
- ISSN
- 2162-2027
2162-2035
Electro-optic effects of PbZr 0.52 Ti 0.48 O 3 (PZT) and BaTiO 3 (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.