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Interface solitons excited between a simple lattice and a superlattice

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Hu, Y., Egger, R., Zhang, P., Wang, X., & Chen, Z. (2010). Interface solitons excited between a simple lattice and a superlattice. Optics Express, 18(14), 14679-14684. doi:10.1364/OE.18.014679.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-BF24-B
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.