Artículo
Dark-bright gap solitons in coupled-mode one-dimensional saturable waveguide arrays
Autor/es | Dong, Rong
Rüter, Christian E. Kip, Detlef Cuevas-Maraver, Jesús Kevrekidis, Panayotis G. Song, Daohong Xu, Jingjun |
Departamento | Universidad de Sevilla. Departamento de Física Aplicada I |
Fecha de publicación | 2011 |
Fecha de depósito | 2015-02-23 |
Publicado en |
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Resumen | In the present work, we consider the dynamics of dark solitons as one mode of a defocusing photorefractive lattice coupled with bright solitons as a second mode of the lattice. Our investigation is motivated by an experiment ... In the present work, we consider the dynamics of dark solitons as one mode of a defocusing photorefractive lattice coupled with bright solitons as a second mode of the lattice. Our investigation is motivated by an experiment that illustrates that such coupled states can exist with both components in the first gap of the linear band spectrum. This finding is further extended by the examination of different possibilities from a theoretical perspective, such as symbiotic ones where the bright component is supported by states of the dark component in the first or second gap, or nonsymbiotic ones where the bright soliton is also a first-gap state coupled to a first or second gap state of the dark component. While the obtained states are generally unstable, these instabilities typically bear fairly small growth rates, which enable their observation for experimentally relevant propagation distances. |
Agencias financiadoras | Ministerio de Ciencia e Innovación (MICIN). España |
Ficheros | Tamaño | Formato | Ver | Descripción |
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PRA_Cuevas_2011.pdf | 787.8Kb | [PDF] | Ver/ | |