Surface periodic poling in congruent lithium tantalate

A.C. Busacca , C.A. Santini , S. Riva Sanseverino, A. Parisi, A.C. Cino, R.L. Oliveri, and G. Assanto

Electron. Lett. 42, 546-547 (2006)


The first demonstration of surface periodic poling of lithium tantalate at high voltages is reported. Periodic domain inversion with mark-to-space ratios close to the optimum 50:50 was successfully achieved down to micrometre periods with good uniformity and repeatability.