物理学报2016，Vol.65Issue(9)：094204-0-094204-7,8.DOI:10.7498/aps.65.094204
负性向列相液晶中1+1维空间光孤子：微扰法∗
(1+1)-dimensional spatial optical soliton in nematic liquid crystals with negative dielectric anisotropy:p erturbation metho d
摘要
Abstract
In this paper, we systematically study the (1+1)-dimensional spatial optical solitons in nematic liquid crystals with negative dielectric anisotropy. Firstly, with the perturbation method, we obtain a (1+1)-dimensional soliton solution in the second approximation.Numerical simulations confirm the analytical soliton solution in the strongly nonlocal case, the critical power of a strongly nonlocal solition is directly proportional to w2m/w3, where wm is a characteristic length of the material response, and w is the soliton width. Secondly, the soliton solutions in nematic liquid crystal with negative dielectric anisotropy are obtained by numerical computation. It is found that the bright solitons exist only when the degree of nonlocality is above a critical value. The analytical solutions in the second approximation accord with the numerical ones very well even under the general degree of nonlocality. Finally, to investigate the stability, we conduct the linear stability analysis, and find that all the solitons are stable, which is also confirmed by the numerical simulations.关键词
空间光孤子/负性向列相液晶/微扰法/线性稳定性分析Key words
spatial optical solitons/nematic liquid crystals with negative dielectric anisotropy/perturba-tion method/linear stability analysis引用本文复制引用
李迎兵,梁果,洪伟毅,任占梅,郭旗..负性向列相液晶中1+1维空间光孤子：微扰法∗[J].物理学报,2016,65(9):094204-0-094204-7,8.基金项目
国家自然科学基金(批准号:11274125,11474109)资助的课题 （批准号:11274125,11474109）
