Generation of second-harmonic conical waves via nonlinear Bragg diffraction

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

Research output: Contribution to journalArticlepeer-review

Abstract

We report on the observation of second-harmonic conical waves generated in a novel geometry of the transverse excitation of an annular periodically poled nonlinear photonic structure by a fundamental Gaussian beam. We show that the conical beams are formed as a result of the higher-order nonlinear Bragg diffraction involving two parametric processes in which an ordinary fundamental wave is converted simultaneously into ordinary and extraordinary polarized second harmonics.

Original languageEnglish
Article number103902
JournalPhysical Review Letters
Volume100
Issue number10
DOIs
StatePublished - 12 Mar 2008

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