Phys. Rev. Lett. 100, 103902 (2008) [4 pages]

Generation of Second-Harmonic Conical Waves via Nonlinear Bragg Diffraction

Abstract

References

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Solomon M. Saltiel^1,2, Dragomir N. Neshev¹, Robert Fischer¹, Wieslaw Krolikowski¹, Ady Arie³, and Yuri S. Kivshar¹
¹Nonlinear Physics Center and Laser Physics Center, Center for Ultra-high Bandwidth Devices for Optical Systems (CUDOS), Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200, Australia
²Department of Quantum Electronics, Faculty of Physics, Sofia University, Bulgaria
³School of Electrical Engineering, Faculty of Engineering, Tel-Aviv University, Tel-Aviv, Israel

Received 3 August 2007; published 12 March 2008

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.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.100.103902

DOI:

10.1103/PhysRevLett.100.103902

PACS:

42.65.Ky, 42.25.Fx, 42.70.Qs

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Phys. Rev. Lett. 100, 103902 (2008) [4 pages]

Generation of Second-Harmonic Conical Waves via Nonlinear Bragg Diffraction