Generation of bright envelope solitons of subnanosecond duration in double negative bigyro-tropic medium based on magnetized ferromagnetic semiconductor film

The results of numerical simulation of periodic sequences of bright envelope solitons of subnano-second duration in a film of bigyrotropic medium possessing the properties of a ferromagnetic (FM) semiconductor are presented. Such short pulses are formed on a backward volume electro-magnetic wave (BVEMW) existing at the frequencies, where the material parameters of the medi-um are double negative. It is shown that the duration of bright envelope solitons of BVEMW is approximately two orders of magnitude shorter than the duration of the bright envelope solitons that are formed on the backward volume magnetostatic spin wave in the FM film.