Research on Stability of Nonlinear TE Surface Waves along the Boundary of Left-Handed Material
This communication presents a simulation of the stability characteristics of nonlinear surface waves
propagating along a left-handed substrate (LHM) and a non-linear dielectric cover. The growth rate of
perturbation is computed by solving the dispersion equation of perturbation. We found that the
stability of nonlinear surface waves is affected by the frequency dependence of the electric
permittivity e h and magnetic permeability mh of the LHM. The spatial evolution of the steady
state field amplitude is determined by using computer simulation method. The calculations
show that with increasing the effective refractive index nx at fixed saturation parameter m p ,
the field distribution is sharpened and concentrated in the nonlinear medium. The waves are
stable of forward and backward behavior. At higher values of nx , attenuated backward
waves are observed.
Hana Mohammed Mousa
Physics Department, Al Azhar University, Gaza, Gaza Strip, Palestinian Authority.
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