Neshev, DragomirSukhorukov, AndreyKivshar, Yuri2015-12-109781461435389http://hdl.handle.net/1885/65787Photonic structures with a periodic modulation of the optical refractive index play an important role in the studies of the fundamental aspects of wave dynamics [1, 2]. In particular, photonic crystals, layered media, or closely spaced optical waveguidesKeywords: Harmonic generation; Nonlinear periodic structures; Solitons; Waveguide arrays201210.1007/978-1-4614-3538-9_42016-02-24