CLASSICAL AREAS OF PHENOMENOLOGY |
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Asymmetrical surface soliton trains |
Yin Guo-Yan(尹国彦), Zheng Jiang-Bo(郑江波), Yang Xiao-Yu(杨晓雨), and Dong Liang-Wei(董亮伟)† |
Institute of Information Optics, Zhejiang Normal University, Jinhua 321004, China |
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Abstract We elucidate the existence, stability and propagation dynamics of multi-spot soliton packets in focusing saturable media. Such solitons are supported by an interface beside which two harmonically photonic lattices with different modulation depths are imprinted. We show that the surface model can support stable higher-order structures in the form of asymmetrical surface soliton trains, which is in sharp contrast to homogeneous media or uniform harmonic lattice modulations where stable asymmetrical multi-peaked solitons do not exist. Surface trains can be viewed as higher-order soliton states bound together by several different lowest order solitons with appropriate relative phases. Their existence as stable objects enriches the concept of compact manipulation of several different solitons as a single entity and offers additional freedom to control the shape of solitons by adjusting the modulation depths beside the interface.
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Received: 05 May 2009
Revised: 31 July 2009
Accepted manuscript online:
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PACS:
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42.65.Tg
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(Optical solitons; nonlinear guided waves)
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42.50.Gy
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(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
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42.65.Sf
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(Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics)
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Fund: Project supported by the National
Natural Science Foundation of China (Grant No.~10704067). |
Cite this article:
Yin Guo-Yan(尹国彦), Zheng Jiang-Bo(郑江波), Yang Xiao-Yu(杨晓雨), and Dong Liang-Wei(董亮伟) Asymmetrical surface soliton trains 2010 Chin. Phys. B 19 044206
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