Abstract
Applying an external driving to a periodic potential drastically modifies both propagation and localization of waves. One important example is dynamic localization (DL), the suppression of broadening of a wave packet during its motion in a periodic potential under the action of an externally applied periodic field [1]. The same effect can occur for optical beams in curved waveguide arrays, where the waveguide bending [see Fig. 1(a)] mimics the effects of the driving field, leading to the cancellation of diffraction [2,3]. Importantly, DL was predicted to occur in multi-dimensional systems, and it was observed in both one- [2] and two-dimensional [3] modulated waveguide arrays. DL was also studied at the boundaries of one-dimensional lattices, where lattice modulation was shown to facilitate the formation of families of new type of defect-free linear surface modes [4,5]. Therefore, an important question is whether such surface modes can also be supported by two-dimensional modulated lattices.
© 2011 Optical Society of America
PDF ArticleMore Like This
Ivan L. Garanovich, Alexander Szameit, Andrey A. Sukhorukov, Matthias Heinrich, Felix Dreisow, Thomas Pertsch, Stefan Nolte, Andreas Tünnermann, and Yuri S. Kivshar
C237 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2011
Alexander Szameit, Felix Dreisow, Matthias Heinrich, Thomas Pertsch, Stefan Nolte, Andreas Tünnermann, Yaroslav Kartashov, and Llouis Torner
JWA28 Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides (BGPP) 2007
Alex Samodurov, Xiaosheng Wang, Cibo Lou, and Zhigang Chen
FWF5 Frontiers in Optics (FiO) 2007