title: Characterization of domain structure of periodically poled Mg:LiNbO3 through multifrequency terahertz generation.
abstract: 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.
authors: Department of Physics, National University of Singapore, Center for Computational Science and Engineering, Singapore.
authors: W M
authors: WM
authors: Liu
authors: A N
authors: AN
authors: Tuchak
authors: Y H
authors: YH
authors: Yan
authors: G Kh
authors: GKh
authors: Kitaeva
authors: S H
authors: SH
authors: Tang