Two-dimensional modulation instability and soliton clusters in nonlocal media with competing cubic-quintic nonlinearities

被引：1
|
作者：
Yang, Yuwen [1 ]
Ge, Lijuan [2 ]
Shen, Ming [1 ]
机构：
[1] Shanghai Univ, Inst Quantum Sci & Technol, Dept Phys, 99 Shangda Rd, Shanghai 200444, Peoples R China
[2] Suzhou Univ Sci & Technol, Sch Math & Phys, Suzhou 215009, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2024年 / 564卷
关键词：
Competing cubic-quintic nonlocal nonlinearity; Modulation instability; Hermite-Gaussian and Laguerre-Gaussian solitons; Variational approach; Split-step Fourier transform; SPATIAL SOLITONS; DARK SOLITONS; STABILIZATION; PROPAGATION; NEMATICON;
D O I：
10.1016/j.optcom.2024.130617
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Using linear -stability analysis, two-dimensional modulation instability (MI) of plane wave is studied in nonlocal media with competing cubic-quintic (CQ) nonlinearities, which shows that MI can be effectively eliminated by strong nonlocality and competing quintic nonlinearity. Furthermore, propagation properties of higherorder soliton clusters, i.e., Hermite-Gaussian (HG) and Laguerre-Gaussian (LG) solitons are also investigated. Bifurcated solutions of these solitons are obtained analytically with variational approach. We also demonstrate in detail the propagation dynamics of the HG and LG solitons with split -step Fourier transform.
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页数：9
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