物理学报2011，Vol.60Issue(4)：247-253,7.
非局域非线性介质中空间暗孤子的理论和实验研究
Experimental and theoretical investigations of spatial dark solitons in nonlocal nonlinear medium
摘要
Abstract
In this paper, we investigate spatial dark solitons in nonlocal nonlinear media. Based on the nonlocal nonlinear Schr(o)dinger equation and the diffusion equation, the numerical solutions with different propagation constants are obtained by using the Newton iterative method. And it is found that there exist dark soliton solutions . and the relation between the width of dark soliton and the degree of nonlocality for any propagation constant under arbitrary nonlocal degrees different propagation constants. In experiments, we observe the formation of the spatial dark solitons in the solution of dye. The influence of Gaussian background on dark solitons is also discussed, and the numerical results are in agreement with the experimental results.关键词
非局域非线性/空间暗孤子Key words
nonlocal nonlinearity/ spatial dark solitons引用本文复制引用
周罗红,高星辉,杨振军,陆大全,郭旗,曹伟文,胡巍..非局域非线性介质中空间暗孤子的理论和实验研究[J].物理学报,2011,60(4):247-253,7.基金项目
国家自然科学基金(批准号:10804033),高等学校科技创新团队项目(批准号:06CXTD005),教育部高等学校博士点专项科研基金(批准号:200805740002)资助的课题. （批准号:10804033）
