PT-symmetric talbot effects

Hamidreza Ramezani, D. N. Christodoulides, V. Kovanis, I. Vitebskiy, Tsampikos Kottos

Research output: Contribution to journalArticlepeer-review

127 Citations (Scopus)


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.

Original languageEnglish
Article number033902
JournalPhysical Review Letters
Issue number3
Publication statusPublished - Jul 20 2012

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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