Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5369788 | Applied Surface Science | 2007 | 5 Pages |
Abstract
We report the formation of directionally ordered nano-scale surface domains on the +z face of undoped congruent lithium niobate single crystals by using UV illumination through a phase mask of sub-micron periodicity with an energy fluence between â¼90 mJ/cm2 and 150 mJ/cm2 at λ = 266 nm. We clearly show here that the UV-induced surface ferroelectric domains only nucleate at and propagate along maxima of laser intensity. Although the domain line separation varies and is greater than 2 μm for this set of experimental conditions, this enables a degree of control over the all-optical poling process.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
I.T. Wellington, C.E. Valdivia, T.J. Sono, C.L. Sones, S. Mailis, R.W. Eason,