负refractive index材料中无耗散孤子的自组织
Self-organization of dissipationless solitons in negative refractive index materials
摘要：
从麦克斯韦方程组出发，从头算导出了负折射率材料中电场传播的一般非线性、非傍轴耗散复Helmholtz方程。为了描述NIM中的非保守孤子动力学，将这类耦合方程化为广义Ginzburg-Landau方程。饱和非线性、损耗和增益之间的交叉补偿使得这些自组织孤子无耗散且异常鲁棒。这种孤子的存在使得NIM有效地无耗散。
英文摘要：
General nonlinear and nonparaxial dissipative complex Helmholtz equations for magnetic and electric fields propagating in negative refractive index materials (NIMs) are derived ab initio from Maxwell equations. In order to describe nonconservative soliton dynamics in NIMs, such coupled equations are reduced into generalized Ginzburg-Landau equation. Cross-compensation between the excess of saturating nonlinearity, losses, and gain renders these self-organized solitons dissipationless and exceptionally robust. The presence of such solitons makes NIMs effectively dissipationless.
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