Dissipative surface solitons in two-dimensional truncated lattices with linear gain and loss

Changming Huang, Yan Wang, Pengcheng Liu, Qidong Fu and Liangwei Dong

Chaos, Solitons & Fractals, 2026, vol. 210, issue P2

Abstract: Dissipative solitons constitute a robust class of self-localized nonlinear states sustained by the dynamic balance between nonlinearity and gain–loss, possessing an intrinsic stability that stems from their fundamental attractor nature. When combined with lattice truncation, this balance gives rise to dissipative surface solitons (DSSs), whose existence and stability are jointly dictated by boundary-induced confinement and non-Hermitian dynamics. In two-dimensional truncated lattices with linear gain and loss, surface localization emerges within gap regimes, where families of DSSs bifurcate from linear surface localized gain modes as the nonlinearity increases. Increasing the number of waveguide rows at the interface enriches the diversity of supported surface modes in both linear and nonlinear regimes. Although multiple DSS families with distinct phase configurations may coexist within the same gap, their dynamical stability is strongly phase selective. These insights establish linear gain–loss engineering as a powerful mechanism for controlling nonlinear surface localization and provide practical guidelines for realizing robust nonlinear surface states in gain–loss-tailored photonic platforms.

Keywords: Dissipative surface solitons; Linear gain–loss engineering; Non-Hermitian photonics; Stability (search for similar items in EconPapers)
Date: 2026
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:210:y:2026:i:p2:s0960077926008568

DOI: 10.1016/j.chaos.2026.118715

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