European Physical Journal D, vol.69, no.7, 2015 (SCI-Expanded)
© 2015 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg.Abstract In this paper, we study the existence of Floquet topological insulators for PT symmetric non-Hermitian Hamiltonians. We consider an array of waveguide in 1D with periodically changing non-Hermitian potential and predict the existence of Floquet topological insulators in the system. We also extend the concept of Floquet topological phase to a two dimensional non-Hermitian system.