PT-symmetric talbot effects

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

Research output: Contribution to journalArticle

116 Citations (Scopus)

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.

Original languageEnglish
Article number033902
JournalPhysical Review Letters
Volume109
Issue number3
DOIs
Publication statusPublished - Jul 20 2012
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Ramezani, H., Christodoulides, D. N., Kovanis, V., Vitebskiy, I., & Kottos, T. (2012). PT-symmetric talbot effects. Physical Review Letters, 109(3), [033902]. https://doi.org/10.1103/PhysRevLett.109.033902