Abstract
The Fe-doped near-stoichiometric lithium niobate (LiNbO 3) crystal has been grown by top seeded solution growth (TSSG) method from congruent melt doped with 0.01 wt.% Fe 2O 3 and 10.9 mol% K 2O. The intrinsic defects and Fe ions location in crystal are investigated on O–H vibration absorption peak position in infrared region and intrinsic absorption edge in UV–VIS region. The photorefractive properties of near-stoichiometric Fe/LiNbO 3 are measured by two-wave coupling method. Compared with congruent Fe/LiNbO 3 with the same Fe doping concentration, near-stoichiometric Fe/LiNbO 3 expresses a greatly improved response speed at the cost of a little decrease of diffraction efficiency.
Sign-in/Register to access full text options 
Free) 
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 call
