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.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=3691537
بازگشت