Applied Physics B

, Volume 76, Issue 4, pp 393–396

Poling dynamics of lithium niobate crystals

  • M.C. Wengler
  • M. Müller
  • E. Soergel
  • K. Buse

DOI: 10.1007/s00340-003-1136-4

Cite this article as:
Wengler, M., Müller, M., Soergel, E. et al. Appl Phys B (2003) 76: 393. doi:10.1007/s00340-003-1136-4

Abstract.

Ferroelectric domain reversal via electric field poling of congruently melting lithium niobate (LiNbO3) crystals is investigated. An electro-optic interferometric observation technique reveals spatial and temporal dynamics of the poling process. Starting from seeds, the domains grow until the entire crystal has a switched polarization. During the switching process the boundaries are preferentially aligned along the crystallographic axes. The coercive field between two sequenced domain inversions is transiently reduced after a poling event, and recovers exponentially with a time constant of about half a minute. No light-induced change of the recovery time constant, neither with green nor with ultraviolet light, is observed. The results are of relevance for domain engineering of LiNbO3 crystals.

PACS: 42.70.Mp; 77.80.Fm

Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • M.C. Wengler
    • 1
  • M. Müller
    • 1
  • E. Soergel
    • 1
  • K. Buse
    • 1
  1. 1.University of Bonn, Institute of Physics, Wegelerstr. 8, 53115 Bonn, GermanyDE