Abstract
Noncolinear frequency doubling (NCFD) is discussed as a sensitive technique for the characterization of acentric crystals. Two methods can be applied: 'Spontaneous' NCFD where light scattered at crystal imperfections is used as second fundamental beam and 'induced' NCFD where the usage of a second laser beam yields three-dimensional spatial resolution. Experimental investigations of pure and VTE-treated lithium niobate and of domain boundaries in potassium niobate are presented.
| Original language | English |
|---|---|
| Pages (from-to) | 21-30 |
| Number of pages | 10 |
| Journal | Ferroelectrics |
| Volume | 184 |
| Issue number | 1-4 |
| DOIs | |
| State | Published - 1996 |
| Externally published | Yes |
Funding
We are greatly indebted to Prof. S. Kapphan and Prof. 0. Schirmer for providing the LiNb03 crystals, Dr. H. Hesse for the KNb03 crystal, and G. Steinhoff for a careful treatment and preparation of the samples. Financial support from the Deutsche Forschungsgemeinschaft (SFB 225, A 10) is gratefully acknowledged.
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