title: Orientation-dependent excitations of lattice soliton trains with hybrid nonlinearity.
abstract: 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.
authors.affiliation: The Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education and TEDA Applied Physics School, Nankai University, Tianjin, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Hu
authors.forename: Cibo
authors.initials: C
authors.lastname: Lou
authors.forename: Sheng
authors.initials: S
authors.lastname: Liu
authors.forename: Peng
authors.initials: P
authors.lastname: Zhang
authors.forename: Jianlin
authors.initials: J
authors.lastname: Zhao
authors.forename: Jingjun
authors.initials: J
authors.lastname: Xu
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Chen