In situ video observation of 180° domain switching in LiTaO3 by electro-optic imaging microscopy
- 15 February 1999
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 85 (4) , 2304-2311
- https://doi.org/10.1063/1.369542
Abstract
We report video observation of 180° domain switching in congruent under an external electric field by electro-optic imaging microscopy. The sideways wall velocity of independently growing 180° domains in the Z plane of the crystal was measured to be 0.1–0.2 mm/s at a constant field of 21.2 kV/mm. The merging of independently growing domains results in a serrated domain front which displays an order of magnitude increase in the wall velocity to ∼2.3 mm/s. We show that this is directly related to ledge formation upon domain merging where preferential nucleation takes place. These velocities are also an order of magnitude higher than those reported earlier for equivalent switching times that were measured by pulsed voltage application followed by ex situ optical observation.
This publication has 12 references indexed in Scilit:
- The role of nonstoichiometry in 180° domain switching of LiNbO3 crystalsApplied Physics Letters, 1998
- Stabilized recording and thermal fixing of holograms in photorefractive lithium niobate crystalsReview of Scientific Instruments, 1998
- Wall velocities, switching times, and the stabilization mechanism of 180° domains in congruent LiTaO3 crystalsJournal of Applied Physics, 1998
- Origin of internal field and visualization of 180° domains in congruent LiTaO3 crystalsJournal of Applied Physics, 1996
- Integrated quasi-phase-matched second-harmonic generator and electrooptic scanner on LiTaO3 single crystalsIEEE Photonics Technology Letters, 1996
- Piezoelectricity and acoustoelectronicsFerroelectrics, 1982
- Interferometric Method for Measuring Electro-Optic Coefficients in CrystalsJournal of the Optical Society of America, 1972
- Nucleation and Growth of Ferroelectric Domains in BaTiO3 at Fields from 2 to 450 kV/cmJournal of Applied Physics, 1963
- Further Experiments on the Sidewise Motion of 180° Domain Walls in BaTiPhysical Review B, 1959
- Domain Formation and Domain Wall Motions in Ferroelectric BaTiSingle CrystalsPhysical Review B, 1954