We report the nonlinear diffraction and Cherenkov radiation via second-harmonic generation in two-dimensional short-range ordered nonlinear photonic structures. We discuss a model for describing this phenomenon and analyze the observed diffraction patterns and polarization properties.
© 2009 The Optical Society
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.1940) Diffraction and gratings : Diffraction
(190.0190) Nonlinear optics : Nonlinear optics
(190.2620) Nonlinear optics : Harmonic generation and mixing
Y. Sheng, S. M. Saltiel, D. Neshev, W. Krolikowski, K. Koynov, and Y. S. Kivshar, "Nonlinear Diffraction in Two-Dimensional Nonlinear Photonic Structures with a Short-Range Order," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, OSA Technical Digest (CD) (Optical Society of America, 2009), paper CTuI7.