Anomalous interactions of spatial gap solitons in optically induced photonic lattices |
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| Authors: | Liu Sheng Hu Yi Zhang Peng Gan Xuetao Xiao Fajun Lou Cibo Song Daohong Zhao Jianlin Xu Jingjun Chen Zhigang |
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| Institution: | The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an 710072, China. |
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| Abstract: | We demonstrate coherent interactions between spatial gap solitons in optically induced photonic lattices. Because of the "staggered" phase structures, two in-phase (out-of-phase) bright gap solitons can repel (attract) each other at close proximity, in contrast to soliton interaction in homogeneous media. A reversal of energy transfer direction and a transition between attractive and repulsive interaction forces can be obtained solely by changing the initial soliton separation relative to the lattice spacing. |
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