PT-Symmetric Talbot Effects

    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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