The role of dispersive magnetic permeability in ultrashort electromagnetic pulse propagation in nonlinear metamaterials

Shuangchun Wen; Qiang Lv; Xi Cheng; Leyong Jiang; Wenhua Su

doi:10.1117/12.743312

27 November 2007 The role of dispersive magnetic permeability in ultrashort electromagnetic pulse propagation in nonlinear metamaterials

Shuangchun Wen, Qiang Lv, Xi Cheng, Leyong Jiang, Wenhua Su

Author Affiliations +

Proceedings Volume 6782, Optoelectronic Materials and Devices II; 67822Z (2007) https://doi.org/10.1117/12.743312
Event: Asia-Pacific Optical Communications, 2007, Wuhan, China

Abstract

Compared to the non-magnetic ordinary dielectrics, the negative-index metamaterials have not only a dispersive electric permittivity but also a dispersive magnetic permeability. The purpose of this paper is to identify the role of dispersive magnetic permeability in nonlinear propagation of ultrashort electromagnetic pulses in metamaterials. Firstly, we derived a generalized system of coupled three-dimensional nonlinear Schroedinger equations suitable for few-cycle pulse propagation in the metamaterial with both nonlinear electric polarization and nonlinear magnetization, which clearly demonstrates the role of dispersive permeability in nonlinear pulse propagation: In the linear propagation aspect, its contribution is buried in the ordinary dispersive terms; while in the nonlinear propagation aspect, the dispersive permeability manifests itself as a nonlinear polarization dispersion, although it is a linear parameter. Secondly, by exemplificatively using the coupled nonlinear Schroedinger equations in the Drude dispersive model, we quantitatively discussed the influence of dispersive permeability on pulse propagation in metamaterials.

Citation Download Citation

Shuangchun Wen, Qiang Lv, Xi Cheng, Leyong Jiang, and Wenhua Su "The role of dispersive magnetic permeability in ultrashort electromagnetic pulse propagation in nonlinear metamaterials", Proc. SPIE 6782, Optoelectronic Materials and Devices II, 67822Z (27 November 2007); https://doi.org/10.1117/12.743312

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