Rapid response of photorefraction in vanadium and magnesium co-doped lithium niobate

Author(s)
Shahzad Saeed, Dahuai Zheng, Hongde Liu, Liyun Xue, Weiwei Wang, Ling Zhu, Mengyuan Hu, Shiguo Liu, Shaolin Chen, Ling Zhang, Yongfa Kong, Romano Rupp, Jingjun Xu
Abstract

Vanadium and magnesium co-doped LiNbO3 (LN) crystals were grown, and their photorefractive properties were studied in the visible spectral region. At 488 nm the shortest response time of 80 ms was achieved for an LN crystal co-doped with 0.1 mol% V2O5 and 6.0 mol% MgO, which is the more rapid than other reported doped LN crystals in the same wavelength region. The sensitivity of this crystal reaches 17 cm J(-1) with an adequate diffraction efficiency of 4.0%. A schematic diagram for energy level is proposed and discussed. Through the analysis of defect structure and absorption spectra, we found that the change of the vanadium ions occupancy from Li sites to Nb sites is responsible for significant shortening the response time. The rapid response of vanadium and magnesium co-doped LN crystal can play an excellent role in the field of dynamic holography and practical holographic 3D-storage applications.

Organisation(s)
Physics of Functional Materials
External organisation(s)
Nankai University, Jožef Stefan Institute (IJS)
Journal
Journal of Physics D: Applied Physics
Volume
52
No. of pages
7
ISSN
0022-3727
DOI
https://doi.org/10.1088/1361-6463/ab30ed
Publication date
10-2019
Peer reviewed
Yes
Austrian Fields of Science 2012
Materials physics
Keywords
Portal url
https://ucris.univie.ac.at/portal/en/publications/rapid-response-of-photorefraction-in-vanadium-and-magnesium-codoped-lithium-niobate(78cc8a1b-31bf-4528-ab17-63dcda6957cf).html