Title :
Self-trapping of optical vortices in photonic lattices optically induced with self-defocusing nonlinearity
Author :
Song, Daohong ; Tang, Liqin ; Lou, Cibo ; Wang, Xiaosheng ; Xu, Jingjun ; Chen, Zhigang ; Susanto, H. ; Law, K. ; Kevrekidis, P.G.
Author_Institution :
Key Lab. of Weak-Light Nonlinear Photonics, Nankai Univ., Tianjin
Abstract :
We demonstrate self-trapping of singly- and doubly-charged vortices in a self-defocusing ldquobackbonerdquo photonic lattice. While the singly-charged vortex can evolve into a gap vortex soliton, the doubly-charged tends to turn into quasi-vortex or quadrupole structure.
Keywords :
optical lattices; optical self-focusing; optical solitons; optical vortices; doubly-charged vortex; gap vortex soliton; optical self-trapping; optical vortices; photonic lattices; quadrupole structure; quasivortex structure; self-defocusing nonlinearity; singly-charged vortex; Lattices; Nonlinear optics; Numerical simulation; Optical arrays; Optical solitons; Optical vortices; Optical waveguides; Photonic crystals; Photorefractive materials; Spine; (190.4420) Nonlinear optics, transverse effects in; (250.5530) Pulse propagation and solitons;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
