Surface waves in two-dimensional modulated photonic lattices

Date

2011

Authors

Garanovich, Ivan
Szameit, Alexander
Heinrich, Matthias
Dreisow, Felix
Pertsch, Thomas
Nolte, Stefan
Tünnermann, Andreas
Sukhorukov, Andrey
Kivshar, Yuri

Journal Title

Journal ISSN

Volume Title

Publisher

European Physical Society

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.

Description

Keywords

Keywords: Curved waveguides; Defect-free; Driving field; Dynamic localization; External driving; Lattice modulations; Multidimensional systems; One-dimensional lattice; Optical beams; Periodic fields; Periodic potentials; Photonic lattice; Surface modes; Waveguide

Citation

Source

European Conference on Lasers and Electro-Optics (CLEO/Europe) 2011

Type

Conference paper

Book Title

Entity type

Access Statement

License Rights

DOI

10.1109/CLEOE.2011.5943257

Restricted until

2037-12-31