Abstract
Ferroelectrics with periodically arranged antiparallel domains are very attractive for applications in nonlinear optics,1 the major difficulty being the fabrication of perfect periodic structures. To produce bulk crystals we used Czochralski growth of lithium niobate crystals doped with Y, Dy, and with Mg as a second dopant, and barium-sodium niobate. Both crystals were grown along the ferroelectric z-axis, and lithium niobate along -direction as well (at 57° to z-axis in YZ-plane).
© 1994 IEEE
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