Ultrashort solitons and kinetic effects in nonlinear metamaterials.
We present a stability analysis of a modified nonlinear Schrödinger equation describing the propagation of ultrashort pulses in negative refractive index media. Moreover, using methods of quantum statistics, we derive a kinetic equation for the pulses, making it possible to analyze and describe partial coherence in metamaterials. It is shown that a unique short pulse soliton, which is found analytically, can propagate in the medium.
Marklund
Mattias
M
Department of Physics, Umeå University, SE-901 87 Umeå, Sweden.
Shukla
Padma K
PK
Stenflo
Lennart
L