Abstract
Triply doped Mg:Fe:Mn:LiTaO3 crystals with near stoichiometry were grown by the top seeded solution growth technique. Defect structure was investigated by infrared absorption spectra and Curie temperature. Using blue laser as light source, excellent photorefractive properties were obtained. Nonvolatile holographic storage properties were investigated by dual wavelength technique. High fixed diffraction efficiency and sensitivity were acquired. The energy of blue light is high enough to excite holes of deep (Mn) and shallow (Fe) trap centers, which enhance dramatically blue photorefractive properties and nonvolatile holographic storage. Mg2+ ion is no longer damage resistant under blue laser, but enhances photorefractive characteristics. Using 476 nm laser to record grating, 633 nm laser as reading light, the fixed diffraction efficiency of 62.5% was obtained in 2 mol% Mg2+ doped crystal, the sensitivity of nonvolatile holographic storage was improved to 0.335 cm/J.
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.
