Characterization of domain structure of periodically poled Mg:LiNbO3 through multifrequency terahertz generation.
Terahertz (THz) wave generation in a periodically poled Mg:LiNbO3 crystal was detected by a pump-probe technique and analyzed using frequency and time-frequency spectra. Multifrequency THz waves were clearly observed, providing information about the domain structure of the crystal. A theoretical T-function model was used to fit the frequency spectrum. A method that can characterize the detailed domain structure and THz capabilities of the inner crystal's parts is proposed.
Liu
W M
WM
Department of Physics, National University of Singapore, Center for Computational Science and Engineering, Singapore.
Tuchak
A N
AN
Yan
Y H
YH
Kitaeva
G Kh
GKh
Tang
S H
SH