We considered the nonlinear dynamics of Bragg polaritons in a specially designed stratified semiconductor structure with embedded quantum wells, which possesses a convex dispersion. The model for the ensemble of single periodically arranged quantum wells coupled with the Bragg photon fields has been developed. In particular, the generalized Gross-Pitaevskii equation with the non-parabolic dispersion has been obtained for the Bragg polariton wave function. We revealed a number of dynamical regimes for polariton wave packets resulting from competition of the convex dispersion and the repulsive nonlinearity effects. Among the regimes are spreading, breathing and soliton propagation. When the control parameters including the exciton-photon detuning, the matter-field coupling and the nonlinearity are manipulated, the dynamical regimes switch between themselves.
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - 30 Jan 2018|
|Event||6th International conference on Modern Nanotechnologies and Nanophotonics for Science and Industry, ICMNNSI 2017 - Suzdal|
Duration: 9 Nov 2017 → 13 Nov 2017
Scopus subject areas
- Physics and Astronomy(all)