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arXiv · 0708.3417

Generation of the second-harmonic Bessel beams via nonlinear Bragg diffraction

Solomon M. Saltiel·Dragomir N. Neshev·Robert Fischer·Wieslaw Krolikowski·Ady Arie·Yuri S. Kivshar
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Abstract

We generate conical second-harmonic radiation by transverse excitation of a two-dimensional annular periodically-poled nonlinear photonic structure with a fundamental Gaussian beam. We show that these conical waves are the far-field images of the Bessel beams generated in a crystal by parametric frequency conversion assisted by nonlinear Bragg diffraction.

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Solomon M. Saltiel, Dragomir N. Neshev, Robert Fischer, Wieslaw Krolikowski, Ady Arie, Yuri S. Kivshar. 2007-08-25. Generation of the second-harmonic Bessel beams via nonlinear Bragg diffraction. https://doi.org/10.1103/physrevlett.100.103902

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