title: Interface solitons excited between a simple lattice and a superlattice.
abstract: We demonstrate nonlinear surface states at the interface between optically-induced simple (periodic) and super (bi-periodic) photonic lattices. Depending on the excitation condition at the interface, we identify numerically and observe experimentally different types of interface solitons with characteristic phase structures under a self-focusing nonlinearity, including dipole-like "mixed-band" interface gap solitons.
authors.affiliation: Department of Physics and Astronomy, San Francisco State University, San Francisco, CA 94132, USA.
authors.forename: Yi
authors.initials: Y
authors.lastname: Hu
authors.forename: Robert
authors.initials: R
authors.lastname: Egger
authors.forename: Peng
authors.initials: P
authors.lastname: Zhang
authors.forename: Xiaosheng
authors.initials: X
authors.lastname: Wang
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Chen