Unidirectional Invisibility Induced by PT-Symmetric Periodic Structures

    Authors

    Z. Lin; H. Ramezani; T. Eichelkraut; T. Kottos; H. Cao;D. N. Christodoulides

    Comments

    Authors: contact us about adding a copy of your work at [email protected]

    Abbreviated Journal Title

    Phys. Rev. Lett.

    Keywords

    NON-HERMITIAN HAMILTONIANS; SCATTERING; TIME; Physics, Multidisciplinary

    Abstract

    Parity-time (PT) symmetric periodic structures, near the spontaneous PT-symmetry breaking point, can act as unidirectional invisible media. In this regime, the reflection from one end is diminished while it is enhanced from the other. Furthermore, the transmission coefficient and phase are indistinguishable from those expected in the absence of a grating. The phenomenon is robust even in the presence of Kerr nonlinearities, and it can also effectively suppress optical bistabilities.

    Journal Title

    Physical Review Letters

    Volume

    106

    Issue/Number

    21

    Publication Date

    1-1-2011

    Document Type

    Article

    Language

    English

    First Page

    4

    WOS Identifier

    WOS:000290940200007

    ISSN

    0031-9007

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