Dynamic Localization and Electromagnetic Transparency of Semiconductor   Superlattice in Multifrequency Electric Fields
  We consider the dynamics of electrons in semiconductor superlattices in intense multifrequency electric fields. We examine the conditions for dynamic localization and electromagnetic transparency. We investigate processes of formation, destruction and stabilization of electromagnetic transparency in biharmonic field. The stable dc fields are founded. 
J.Y.Romanova, Y.A.Romanov