Open AccessInfluence of dopants on nonvolatile holographic storage in lithium niobate
Author(s) -
Bo Fu,
Guoquan Zhang,
Xiangming Liu,
Yan Shen,
Qingjun Xu,
Kong Yong-fa,
Shaolin Chen,
Jingyi Xu
Publication year - 2008
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.57.2946
Subject(s) - lithium niobate , materials science , dopant , doping , holography , lithium (medication) , optics , ultraviolet , optoelectronics , crystal (programming language) , optical storage , phase (matter) , chemistry , physics , medicine , organic chemistry , computer science , programming language , endocrinology
By studying the ultraviolet-red two-color holographic storage performances of Mg-, Zn- and In-doped lithium niobate crystals, we found that the response time of the two-color recording could be shortened by as much as 3 orders of magnitude compared to that of one-color recording, and the two-color recording sensitivity was improved significantly, which was measured to be 11 cm/J in the crystal doped with Mg of 5 mol.%. Nonvolatile holographic storage was achieved in the crystals with doping concentrations above the damage-resistant threshold value. However, gratings on the deep centers and the shallow centers were out of phase in Mg- or Zn-doped lithium niobate, while those in In-doped lithium niobate were in phase. We consider that different defects induced by different dopants are responsible for the observed results.