title: Multipole-mode surface solitons.
abstract: We discover multipole-mode solitons supported by the surface between two distinct periodic lattices imprinted in Kerr-type nonlinear media. Such solitons are possible because the refractive index modulation at both sides of the interface glues together their out-of-phase individual constituents. Remarkably, we find that the new type of solitons may feature highly asymmetric shapes, and yet they are stable over wide domains of their existence, a rare property to be attributed to their surface nature.
authors.affiliation: ICFO-Institut de Ciencies Fotoniques and Universitat Politecnica de Catalunya, Barcelona, Spain. Yaroslav.Kartashov@icfo.es
authors.forename: Yaroslav V
authors.initials: YV
authors.lastname: Kartashov
authors.forename: Lluis
authors.initials: L
authors.lastname: Torner