Abstract
Congruent Ce(0.1mol%):Fe(0.03wt%):LiNbO3 crystals doped with different concentrations of 2.0mol%, 4.0mol% and 6.0mol% MgO were grown by the Czochralski method. The effects of Mg-doping on UV absorption edge and OH- absorption peak were investigated by absorption spectra and infrared spectra. The mechanism of the absorption edge shifting and OH-absorption peak shifting was investigated. Using He-Ne laser as light source, the photorefractive properties such as the writing time, erasure time, diffraction efficiency, dynamic range and sensitivity of the samples were experimentally studied by two-beam coupling. It is found that the holographic properties of the Mg:Ce:Fe:LiNbO3 crystals are improved when compared with Ce:Fe:LiNbO3 crystal's. The doping mechanism is discussed using the Li-vacancy model.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
