Open AccessTime-space diffraction properties of volume holographic grating in doubly doped LiNbO3:Fe:Mn
Author(s) -
Liyong Ren,
Liren Liu,
Dean Liu,
Zhu Luan
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.2788
Subject(s) - photorefractive effect , holography , grating , diffraction , materials science , diffraction efficiency , optics , volume hologram , crystal (programming language) , phase (matter) , holographic grating , diffraction grating , interference (communication) , physics , channel (broadcasting) , electrical engineering , engineering , quantum mechanics , computer science , programming language
By jointly solving the two-centre material equations and the coupled-wave equaions,we set up a dynamic model to study the time-space diffraction properties of the photorefractive volume holograms recorded by two colour light in doubly doped LiNbO3:Fe:Mn crystals.Numerical calculations show that,the time -space diffraction properties of the dynamic volume grating are relevant to the relative spatial phase shift between the index grating and the interference field.The spatial phase shift is defined between -π and π,the energy transferring direction between the two-coupled beams will be reversed with the reversion of the sign of the spatial phase shift.The winding of equal-phase line and the redistributed intensities of the two-coupled beams inside the crystal are given.