结合三次非线性和饱和非线性的线性耦合中的表面间隙孤子

IF 2.2 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2025-06-16 DOI:10.1016/j.optcom.2025.132048

Huilian Wei, Xuefei Zhang, Xiaoyang Wang, Tianfu Xu

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引用次数: 0

摘要

通过线性稳定性分析和实时演化，证明了表面间隙孤子在三次非线性和饱和非线性的线性耦合下的存在性和稳定性。结果表明，耦合系数和井深都会影响干涉条纹的亮度。在表面孤子的碰撞过程中，相位变化导致干涉图样以四种不同的方式演变。随着耦合系数的增大和势井深度的增大，多峰孤子的干涉模式更加明显。对于多峰孤子，三次非线性项和饱和非线性项的干涉图可以表现出相同的干涉强度。

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Surface gap solitons in linear coupling combined with cubic and saturable nonlinearity

We demonstrate the existence and stability of surface gap solitons under linear coupling combined with cubic and saturable nonlinearity by linear stability analysis and real-time evolution. Our results show that both the coupling coefficient and the depth of the well can influence the brightness of the interference fringes. During the collision of surface solitons, phase changes cause the interference pattern to evolve in four distinct ways. As the coupling coefficient and potential well depth increase, the interference patterns of multi-peak solitons become more pronounced. For multi-peak solitons, the interference pattern of the cubic and saturable nonlinear terms can exhibit the same interference intensity.

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来源期刊

Optics Communications 物理-光学

CiteScore

5.10

自引率

8.30%

发文量

681

审稿时长

38 days

期刊介绍： Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.