Generation of Bessel beams by parametric frequency doubling in annular nonlinear periodic structures.

Abstract

We analyze the second-harmonic generation in two-dimensional photonic structures with radially periodic domains created by poling of a nonlinear quadratic crystal. We demonstrate that the parametric conversion of the Gaussian fundamental beam propagating along the axis of the annular structure leads to the axial emission of the second-harmonic field in the form of the radially polarized first-order Bessel beam.

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@article{Saltiel2007GenerationOB, title={Generation of Bessel beams by parametric frequency doubling in annular nonlinear periodic structures.}, author={Solomon Mois Saltiel and Wieslaw Z. Krolikowski and Dragomir N Neshev and Yuri S Kivshar}, journal={Optics express}, year={2007}, volume={15 7}, pages={4132-8} }