Orientation-dependent excitations of lattice soliton trains with hybrid nonlinearity.
Orientation-dependent excitations of lattice soliton trains with hybrid nonlinearity.
复制标题
DOI：
10.1364/ol.34.001114
复制
发表时间：
2009-04
期刊：
影响因子：
3.6
通讯作者：
Y. Hu;C. Lou;Sheng Liu;Peng Zhang;Jianlin Zhao;Jingjun Xu;Zhigang Chen
中科院分区：
文献类型：
--
作者：
Y. Hu;C. Lou;Sheng Liu;Peng Zhang;Jianlin Zhao;Jingjun Xu;Zhigang Chen
通过改变输入探测光束的取向，我们演示了驻留在一种新型光子晶格的不同禁带或同一布洛赫带内的孤子串的选择性激发。在非常规偏置光折变晶体中建立的自聚焦和散焦混合非线性导致了来自不同带边或子带边的受控孤子跃迁，这与我们的理论分析一致。
We demonstrate selective excitation of soliton trains residing in different gaps or within the same Bloch band of a new type of photonic lattice merely by changing the orientation of an input probe beam. A self-focusing and -defocusing hybrid nonlinearity as established in a nonconventionally biased photorefractive crystal leads to controlled soliton transitions from different band edges or subband edges, in good agreement with our theoretical analysis.