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Proceedings Paper

The role of dispersive magnetic permeability in ultrashort electromagnetic pulse propagation in nonlinear metamaterials
Author(s): Shuangchun Wen; Qiang Lv; Xi Cheng; Leyong Jiang; Wenhua Su
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Paper 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.

Paper Details

Date Published: 27 November 2007
PDF: 9 pages
Proc. SPIE 6782, Optoelectronic Materials and Devices II, 67822Z (27 November 2007); doi: 10.1117/12.743312
Show Author Affiliations
Shuangchun Wen, Hunan Univ. (China)
Qiang Lv, Hunan Univ. (China)
Xi Cheng, Hunan Univ. (China)
Leyong Jiang, Hunan Univ. (China)
Wenhua Su, Hunan Univ. (China)

Published in SPIE Proceedings Vol. 6782:
Optoelectronic Materials and Devices II
Yoshiaki Nakano, Editor(s)

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