Vector solitons in nonlinear isotropic chiral metamaterials

Research areas:
Year:
2011
Type of Publication:
Article
Authors:
Journal:
Journal of Physics A: Mathematical and Theoretical
Volume:
44
Number:
435203
Pages:
13 pp
Abstract:
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.


Member's Login / Logout
2012 © Multimedia Lab - Informatics Department - Aristotle University of Thessaloniki

Εσωτερική Διαχείριση