期刊
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
卷 44, 期 43, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1751-8113/44/43/435203
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资金
- Charles Godfrey Binder Endowment at Penn State
- University of Athens
Starting from the Maxwell equations, we used the reductive perturbation method to derive a system of two coupled nonlinear Schrodinger (NLS) equations for the two Beltrami components of the electromagnetic field propagating along a fixed direction in an isotropic nonlinear chiral metamaterial. With single-resonance Lorentz models for the permittivity and permeability and a Condon model for the chirality parameter, in certain spectral regimes, one of the two Beltrami components exhibits a negative-real refractive index when nonlinearity is ignored and the chirality parameter is sufficiently large. We found that, inside such a spectral regime, there may exist a subregime wherein the system of the NLS equations can be approximated by the Manakov system. Bright-bright, dark-dark, and dark-bright vector solitons can be formed in that spectral subregime.
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