Abstract
We study Čerenkov-type second-harmonic generation in a two-dimensional quasi-periodically poled LiNbO3 crystal. We employ a new geometry of interaction to observe simultaneous emission of multidirectional nonlinear Čerenkov radiation with comparable intensities. This opens a way to control the angle of Čerenkov emission by tailoring the nonlinearity of the material, which is otherwise intrinsically defined by dielectric constants of the medium and their dispersion.
| Original language | English |
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| Pages (from-to) | 3948-3953 |
| Number of pages | 6 |
| Journal | Optics Express |
| Volume | 20 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 13 Feb 2012 |