Title

PT-Symmetric Talbot Effects

Authors

Authors

H. Ramezani; D. N. Christodoulides; V. Kovanis; I. Vitebskiy;T. Kottos

Comments

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Abbreviated Journal Title

Phys. Rev. Lett.

Keywords

NON-HERMITIAN HAMILTONIANS; GRATINGS; OPTICS; Physics, Multidisciplinary

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.

Journal Title

Physical Review Letters

Volume

109

Issue/Number

3

Publication Date

1-1-2012

Document Type

Article

Language

English

First Page

5

WOS Identifier

WOS:000306604700005

ISSN

0031-9007

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