Cerenkov-Type Second-Harmonic Generation in Two-Dimensional Nonlinear Photonic Structures
| Autor: | Dragomir N. Neshev, Noa Voloch-Bloch, Yan Sheng, Solomon M. Saltiel, Wieslaw Krolikowski, Kaloian Koynov, Ady Arie, Yu. S. Kivshar |
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| Rok vydání: | 2009 |
| Předmět: |
Quasi-phase-matching
Physics Birefringence business.industry Physics::Optics Nonlinear optics Second-harmonic generation Condensed Matter Physics Molecular physics Ferroelectricity Atomic and Molecular Physics and Optics Symmetry (physics) Optics Electrical and Electronic Engineering Photonics business Photonic crystal |
| Zdroj: | IEEE Journal of Quantum Electronics. 45:1465-1472 |
| ISSN: | 1558-1713 0018-9197 |
| DOI: | 10.1109/jqe.2009.2030147 |
| Popis: | We study the Cerenkov-type second-harmonic generation in several different two-dimensional nonlinear photonic structures formed in birefringent crystals with the 3 m symmetry. Depending on the degree of birefringence, we observe either single or double Cerenkov-like second-harmonic rings. We discuss the properties of these parametrically generated rings and show that their sixfold azimuthal modulation is associated with the hexagonal symmetry of the individual ferroelectric domains. |
| Databáze: | OpenAIRE |
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