title: PT-symmetric Talbot effects.
abstract: We show that complex PT-symmetric photonic lattices can lead to a new class of self-imaging Talbot effects. For this to occur, we find that the input field pattern has to respect specific periodicities dictated by the symmetries of the system. While at the spontaneous PT-symmetry breaking point the image revivals occur at Talbot lengths governed by the characteristics of the passive lattice, at the exact phase it depends on the gain and loss parameter, thus allowing one to control the imaging process.
authors.affiliation: Department of Physics, Wesleyan University, Middletown, Connecticut 06459, USA.
authors.forename: Hamidreza
authors.initials: H
authors.lastname: Ramezani
authors.forename: D N
authors.initials: DN
authors.lastname: Christodoulides
authors.forename: V
authors.initials: V
authors.lastname: Kovanis
authors.forename: I
authors.initials: I
authors.lastname: Vitebskiy
authors.forename: Tsampikos
authors.initials: T
authors.lastname: Kottos