Optically induced transition between discrete and gap solitons in a nonconventionally biased photorefractive crystal |
| |
Authors: | Zhang Peng Liu Sheng Zhao Jianlin Lou Cibo Xu Jingjun Chen Zhigang |
| |
Institution: | Institute of Optical Information Science and Technology and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an 710072, China. |
| |
Abstract: | We show that optically induced photonic lattices in a nonconventionally biased photorefractive crystal can support the formation of discrete and gap solitons owing to a mechanism that differs from the conventional screening effect. Both the bias direction and the lattice orientation can dramatically influence the nonlinear beam-propagation dynamics. We demonstrate a transition from self-focusing to -defocusing and from discrete to gap solitons solely by adjusting the optical-beam orientation. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |