Linear diffraction of light waves on periodically poled domain structures in lithium niobate crystals: collinear, isotropic, and anisotropic geometries

Photorefractive Photonics 2017

Shandarov, S.M.^1 ; Mandel, A.E.^1 ; Akylbaev, T.M.^1 ; Borodin, M.V.^1 ; Savchenkov, E.N.^1 ; Smirnov, S.V.^1 ; Akhmatkhanov, A.R.^2 ; Shur, V.Ya.^2

Department of Electronic Devices, Tomsk State University of Control Systems and Radioelectronics, 40, Lenin Ave., Tomsk

634050, Russia^1

Institute of Natural Sciences, Ural Federal University, 51, Lenin Ave., Ekaterinburg

620083, Russia^2

关键词: Anisotropic diffraction;    Central wavelength;    Collinear diffraction;    Light diffraction;    Linear diffraction;    Lithium niobate crystal;    Periodically poled;    Spatial periods;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/867/1/012017/pdf
DOI  :  10.1088/1742-6596/867/1/012017

来源: IOP

【 摘 要 】

The possible variants of experimental observation of light diffraction on periodically poled domain structures (PPDS) in the lithium niobate crystal with 180-degree domain Y-walls are considered. We experimentally investigated isotropic and anisotropic diffraction of coherent light (λ = 655nm) on the PPDS with spatial period Λ = 8.79 μm produced by poling method in a LiNbO3: 5% MgO crystal. The central wavelength of irradiation experiencing a collinear diffraction on these PPDS is estimated as λc= 455 nm.